Materials & Welding

[MW:13657] MW:13655--Thermal Cutting Procedure for Clad Plate(SA 516 Gr 70 + Alloy 825) / Please Share

2012-02-12T09:55:00.000+05:30

Hi Vino,

The default cutting method is plasma cutting.High power Oxy-fuel cutting is also feasible, but you may have to remove the wider kerf width by grinding. See the attached article for your reference.

Thanks.

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario, Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

On 6 February 2012 18:36, Vino Varghese <vinopvarghese@gmail.com> wrote:

Dear Technical Experts,

We are a company fabricating ASME Pressure Vessel and require your support for the subject matter for our project.

The base material is SA 516 Gr 70, 30 mm thick – Arcelor Mtthal

The Clad Material is Alloy 825, 4 mm thick – Thyseen Krupp

Process- Explosion Bonding

We require your assistance to understand the correct methodology to cut the Explosion Bonded Plate without any damage.

Hope to see you technical support as usual in this matter and any specific precaution to be considered during the thermal cutting process of above said plates. Please share any Procedure for subject.

Thanks & Regards

Vino - Doha, Qatar

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Re: [MW:13655] Thermal Cutting Procedure for Clad Plate(SA 516 Gr 70 + Alloy 825) / Please Share

2012-02-12T00:24:00.000+05:30

Dear Vino,

There are two options

1. Mark the cutting line, Carry out gouging using plasma hand held torch (optionaly) if you have mechanised edge preparation unit you can make a groove to remove the inconel layer (4mm), then cut the CS portion as normal oxy-fuel tourch

2. Mark the cutting line on the CS side and start cutting. for SS clad I have done and succeeded but I am not sure this will do for 825.

C. K. Purohit
+968 92840112

On 6 February 2012 18:36, Vino Varghese <vinopvarghese@gmail.com> wrote:

Dear Technical Experts,

We are a company fabricating ASME Pressure Vessel and require your support for the subject matter for our project.

The base material is SA 516 Gr 70, 30 mm thick – Arcelor Mtthal

The Clad Material is Alloy 825, 4 mm thick – Thyseen Krupp

Process- Explosion Bonding

We require your assistance to understand the correct methodology to cut the Explosion Bonded Plate without any damage.

Hope to see you technical support as usual in this matter and any specific precaution to be considered during the thermal cutting process of above said plates. Please share any Procedure for subject.

Thanks & Regards

Vino - Doha, Qatar

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[MW:13656] RE: 13648] What is maximum limit for PWHT soaking temperature for P.No.1 Gr.1 & 2?

2012-02-11T22:51:00.000+05:30

Dear Friends,

minimum PWHT Soaking temperature is given in ASME Sec VIII Div. 1 UCS-56, My question is What is maximum temperature that we can use for PWHT with reference to some applicable standards or metallurgical point of view point?

Can we do PWHT for P.No.1 Gr.1 & 2 (e.g SA 516 Gr. 60 & 70) maximum up to lower critical temperature i.e. 723 Degree Centigrade?

Thanks in Advance for your valuable share.

Re: [MW:13654] ASTM A890 Gr 6A Casting Repair procedure

2012-02-11T12:20:00.000+05:30

Hi,

Curious to know the application of these castings?

ASTM E165 (Liquid Penetration examination)and ASME Sec Viii Div 1 App 7 outlines the method and
acceptance criteria of discontinuities.

If discontinuity is unacceptable, weld repair shall be performed in accordance with applicable
ASTM, castings shall be PWHT'd for major repairs in accordance with supplementary requirement
S33.

ASME Sec ix and ASTM A488 shall be followed for welding procedure qualification of repairs,
please check client specification for impact requirements or tell us what is MDMT to decide
impact testing,Absorbed energy shall be 48J average and 36J single value minimum. after repair
welding hardness shall not exceed HRC 32 or HV 319.

Surface finish shall be White Pickled

Matched fillers with GTAW and shielding gas Ar + 2% Nitrogen are used for welding repairs if
PWHT is carried out.

Suggest to consult Filler supplier to achieve best results.

Regards
Manpreet Singh

On Fri, 10 Feb 2012 18:14:10 +0530 wrote
>Hi everybody,

I have been deputed for a Casting Repair upgradation.

Please suggest me Casting Repair procedure and How many PT rounded

indications shall I accept?

Material is ASTM A 890 Gr 6A SDSS

Appreciated for fast response.

Shanmuga Navaneethan

Sr.Welding Engineer

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Re: [MW:13658] Consequences of Welding on Fitting & Flange Body.

2012-02-11T09:41:00.000+05:30

Hi Vimal,

I see it as a serious Flaw in your and Contractor's working style, while designing
piping/pipeline, Stress calculations are carried out to determine where and how many supports
are required, from the pictures provided, it appears that designing phase is bypassed.

Anyway since you wanted to know about Design of supports, please find as described below:-

*For Pipeline:- ASME B31.4 clause 404.9.1, if pipeline is operated above 20% of SMYS (specified
metal yield strength) then support must be attached to full encircle reinforcement (ATTACH NOT
Welded)

*For Pipeline:- ASME B31.8 clause 834.5, if hoop stress is greater than 50% then support must
be welded to full encirclement reinforcement (Welded to 2 180deg RF PAD)

*For Piping:- ASME B31.3 allows to weld support with RF PAD.

*For Pipeline:- AS2885 states that if pipeline is operated above 50% of SMYS, a support and
clamp shall completely encircle the pipe, when it is necessary to provide positive attachment,
the pipe may be welded only to encircling member,support shall be encircling member not
directly to pipe.

To conclude, Support welding to pipeline/piping is prohibited, greater %of Yield strength is
reserved exclusively for hoop stress utilization, so no introduction of additional stresses by
rigid welded to the pipe restraint is welcome.

Another factor to consider is that for pipelines, a non-metallic PTFE pad are provided in
between of encircling member and pipeline,it is placed to avoid corrosion of pipeline with
direct contact.

Regards
Manpreet Singh

On Fri, 10 Feb 2012 15:47:25 +0530 wrote
>Dear All,
Need your suggestions on both the cases as given in these photos.
My contractor has done these, his stand is that if welding of theses are to be avoided, then
there will be problems during installation & will result in leakage during Hydrotest.

Request you all to provide your suggestions to avoid these in future.
Regards,

Vimal Kumar.

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[MW:13651] Filler for welding Kanthal APM bar to SS 316 plate

2012-02-10T23:39:00.000+05:30

Hello ALL,

Can anybody suggest me suitable filler of ER series for welding Kanthal APM bar to SS 316 plate.

Regards

S G Dixit

Re: [MW:13652] Longitudinal weld seam staggering _Section VIII Div 2 Reg.,

2012-02-10T23:13:00.000+05:30

I could guide you on Div.1 as i am working on it.

If you refer ASME Sec.VIII Div.1, UW-9 - Design of welded joints, the distance between long seams is mentioned as:

Center line of long seams of two shells courses shall be staggered by at least 5 times the thickness of thicker plate. This may be reduced if T-Junction is radiographed 100mm length of each long seam.

Similarly you can refer Div.2

Regards

Prem Nautiyal

--- On Wed, 2/8/12, kcrtechnical <kcrtechnical@gmail.com> wrote:

From: kcrtechnical <kcrtechnical@gmail.com>
Subject: [MW:13635] Longitudinal weld seam staggering _Section VIII Div 2 Reg.,
To: materials-welding@googlegroups.com
Date: Wednesday, February 8, 2012, 6:04 PM

Dear Friends,

What is the Staggering distance between 2 Longseams of 50mm thick shells, as per Section VIII Div 2

Best regards

K C R

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[MW:13653] Procedure qualification with Impact test & PWHT

2012-02-10T18:47:00.000+05:30

Dear all,

Request your kind clarification on the below subject.

For Welding Procedure Qualification as per ASME SEC IX , with impact test and PWHT.

1) QW 407.2 states " The procedure qualification test shall be subjected to PWHT essentially equivalent to that encountered in the fabrication of production welds, including at least 80% of the aggregate times at temperature"

Question:

Can we use a PQR for a production weld, which has PWHT to be done for a shorter duration than that recorded in the PQR. (e.g. PQR qualifed at 620 degC for 120minutes and production requirement 620 degC for 100 minutes)

2) Please find attached file.

regards

lsk

Re: [MW:13650] Longitudinal weld seam staggering _Section VIII Div 2 Reg.,

2012-02-10T08:55:00.000+05:30

Hi,

Please find below general practice followed in Pipeline construction where you usually
encounter successive seam welded pipes, welded to each other:-

Seam Welds in pipe shall be separated between 60 and 120 degrees apart.

Regards
Manpreet Singh

On Thu, 09 Feb 2012 16:46:03 +0530 wrote
>

Dear Friends,

What is the Staggering distance between 2 Longseams
of 50mm thick shells, as per Section VIII Div 2

Best regards
K C R

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Re: Re: [MW:13649] Re: Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)

2012-02-10T08:38:00.000+05:30

Hi,

I would second Jignesh comments, BTW ASME Sec viii Div 1 does not explicitly discuss about
Impact testing of supports, Since these Skirts/supports are continuously welded to shell
becomes an integral part of vessel though still classified as "Non pressure Parts".

Both Material and welding procedure qualification shall be evaluated for MDMT of -46 deg c,
however if Design temperature was -29 deg C, you could get rid of impact testing (UG-20).

Suggest to use ASTM A516 Gr.70 as support material.

Regards
Manpreet Singh

On Thu, 09 Feb 2012 11:57:27 +0530 wrote
>
Dear Mr. Ali,

I like to share my views on this subject and let's concentrate discussions on ASME Section viii
Div. 1.

As per UCS-66, any attachment which is essential for structural integrity of the vessels when
welded to pressure retaining components shall be considered as separate component and to be
checked for impact testing w.r.t to material specification, MDMT and thickness limits.

Pl note that structural integrity of the part has to be confirmed by designer.

With Best Regards,

Jignesh R Rana

Manager - Materials Technology, QA/QC & Standards

Linde Engineering India Pvt. Ltd.

'Linde House'

Opp: VUDA Office, VIP Road, Karelibaug,Vadodara - 390018, India.

Tel.: +91 265 3056789, Fax: +91 265 2335213 , Mobile: +91 90999 86019

jignesh.rana@linde-le.com, www.linde-india.com

This e-mail is confidential. If you are not the intended recipient, please notify us
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"mohd.qce" ---05-02-2012 21:35:57---dear aly, what absorb from ur mail is u mean to say WPS to
be impact tested

From: "mohd.qce"

To: "Materials & Welding"

Date: 05-02-2012 21:35

Subject: [MW:13613] Re: Applicability of Impact testing for Non pressure parts welded on
non pressure parts (inside the vessel)

Sent by: materials-welding@googlegroups.com

dear aly,

what absorb from ur mail is u mean to say WPS to be impact tested

correct.Then non pressure welding does not requre impact tested.u can

use WPS without having a impact tested.

regards,

mohd.

On Feb 4, 9:05 am, "Aly" wrote:

> Dear Expert,

>

> Kindly advise on following;

>

> Suppose I have a vessel with MDMT minus 48deg C, we have support plate (SP1)

> (inside the vessel) welded with vessels, on which I am going to weld another

> support plate (Sp2),

>

> My question is whether this (SP1 & SP2) required to have impact tested to

> minus 46deg C or only SP1?

>

> Similarly would saddle supports of this vessel require matl with impact

> testing.

>

> Thank you in advance..

>

> Ali Mhaskar

> UAE

>

> imstp_animation_butterflies_en_020908.gif

> 42KViewDownload

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[MW:13648] What is maximum limit for PWHT soaking temperature for P.No.1 Gr.1 & 2?

2012-02-10T00:48:00.000+05:30

Dear Friends,

Can we do PWHT for P.No.1 Gr.1 & 2 (e.g SA 516 Gr. 60 & 70) maximum up to lower critical temperature i.e. 723 Degree Centigrade?

Thanks in Advance for your valuable share.

[MW:13647] Re: What is meant by MGAL

2012-02-09T17:48:00.000+05:30

Hi Prohit

+MGAL is a Megnesium-Aluminium Transparent spinel. Its a new
technology.

regards
NAV

On Feb 8, 6:37 am, Chaitanya Purohit <chaitanya_puro...@yahoo.co.in>
wrote:
> Dear All,
>
> We have procured Flat bars of 60 x 40mm size with material specification
> S355 J2
>
> In the MTC, material specification is S355 J2 + MGAL as per EN10025-2:2004
>
> Can somebody, please clarify the meaning of 'MGAL' mentioned in MTC along
> with Material spec / Grade
>
> C. K. Purohit
> +968 92840112

[MW:13646] MIS- MATCH

2012-02-09T17:44:00.000+05:30

Dear All

Kindly share your informations regarding the below query,

In a ASME B 31.4 constructing line ( 24", sch. std), the joints are given with tee & pipe. but unfortunately contractor procured tee with more thickness (13.2mm) which is resulting in external miss-match of around 6-9mm. according to 31.4, the maximum allowable is 4.8mm (1/2 t, t= 9.53mm). as the joints are already welded, how this can be corrected? is grindingof weld and re-welding is allowed? or to be cut and re-welded? (pls. note the ID is almost matching).

Thanks & regards

Kumar.

[MW:13645] ASTM A890 Gr 6A Casting Repair procedure

2012-02-09T17:41:00.000+05:30

Hi everybody,

I have been deputed for a Casting Repair upgradation.

Please suggest me Casting Repair procedure and How many PT rounded
indications shall I accept?

Material is ASTM A 890 Gr 6A SDSS

Appreciated for fast response.

Shanmuga Navaneethan
Sr.Welding Engineer

[MW:13643] RE: 13639] Consequences of Welding on Fitting & Flange Body.

2012-02-09T16:05:00.000+05:30

Dear Vimal,

So you want suggestions to avoid these type of incidents in future, means you are leaving this particular incident.

If you have such Contractors, you can never avoid these type of incidents.

Regards,

Jyothidas.

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Vimal Kumar
Sent: Thursday, February 09, 2012 10:06 AM
To: materials-welding@googlegroups.com
Subject: [MW:13639] Consequences of Welding on Fitting & Flange Body.

Dear All,

Need your suggestions on both the cases as given in these photos.

My contractor has done these, his stand is that if welding of theses are to be avoided, then there will be problems during installation & will result in leakage during Hydrotest.

Request you all to provide your suggestions to avoid these in future.

Regards,

Vimal Kumar.

[MW:13644] RE: 13639] Consequences of Welding on Fitting & Flange Body.

2012-02-09T15:35:00.000+05:30

This is the common practice! everywhere. Only ensure that there is no welding done on the flange face. Temporary supports shall be from the similar material type from the weldability point of view. Tack welding if any shall removed properly and the surface shall be free from defects.

M.Vijayan

Dear All,

Need your suggestions on both the cases as given in these photos.

My contractor has done these, his stand is that if welding of theses are to be avoided, then there will be problems during installation & will result in leakage during Hydrotest.

Request you all to provide your suggestions to avoid these in future.

Regards,

Vimal Kumar.

This communication and any files transmitted with it are confidential and may also be privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient or the person responsible for delivering it to the intended recipient(s), please note that any form of distribution, copying or use of this communication or information contained in it is strictly prohibited and may be unlawful. If you have received this communication in error please return it to the sender, and delete the material from any computer. We reserve the right to monitor email communications through normal internal and external networks. We believe but not warrant that the email and the attachments are virus free. The statement and opinions expressed in this communication are those of the writer and do not necessarily represent those of Madina Group, whose registered office address is

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Re: [MW:13642] Consequences of Welding on Fitting & Flange Body.

2012-02-09T14:50:00.000+05:30

The welding direct to piping and flanges are not at all accepted. The heating effect will create improper seating of flanges or weakness of piping structure.

The alternate way using sufficient clamps or keeping extra material prior to direct welding can be reduced some adverse effect at later stage.

With regards

T.Mahendran,

Tabouk - KSA,
Ph: 059 3423 767.

--- On Thu, 2/9/12, Vimal Kumar <jvkumarr@gmail.com> wrote:

From: Vimal Kumar <jvkumarr@gmail.com>
Subject: [MW:13639] Consequences of Welding on Fitting & Flange Body.
To: materials-welding@googlegroups.com
Date: Thursday, February 9, 2012, 7:05 AM

Dear All,

Need your suggestions on both the cases as given in these photos.

My contractor has done these, his stand is that if welding of theses are to be avoided, then there will be problems during installation & will result in leakage during Hydrotest.

Request you all to provide your suggestions to avoid these in future.

Regards,

Vimal Kumar.

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[MW:13641] RE: 13639] Consequences of Welding on Fitting & Flange Body.

2012-02-09T14:21:00.000+05:30

Hi,

They need to fabricate proper steel support without welding on the
Fittings. The SUPPORT can be arrested during the shipment.

But it looks, lack of material, knowledge etc. It may give problem, if
the welded materials are not compatible with Fittings.

With Kind Regards,

Malai

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of Vimal Kumar
Sent: Thursday, February 09, 2012 10:06 AM
To: materials-welding@googlegroups.com
Subject: [MW:13639] Consequences of Welding on Fitting & Flange Body.

Dear All,

Need your suggestions on both the cases as given in these photos.

My contractor has done these, his stand is that if welding of theses are
to be avoided, then there will be problems during installation & will
result in leakage during Hydrotest.

Request you all to provide your suggestions to avoid these in future.

Regards,

Vimal Kumar.

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[MW:13639] Consequences of Welding on Fitting & Flange Body.

2012-02-09T12:35:00.000+05:30

Dear All,

Need your suggestions on both the cases as given in these photos.

My contractor has done these, his stand is that if welding of theses are to be avoided, then there will be problems during installation & will result in leakage during Hydrotest.

Request you all to provide your suggestions to avoid these in future.

Regards,

Vimal Kumar.

[MW:13639] Re: B-H curve of ASTM A 36

2012-02-09T11:42:00.000+05:30

Mr.Hiren

Kindly let me know what is the BH Curve. And what purpose.

Regards

Santhosh

On Feb 8, 5:10 pm, sevak hiren <hirenseva...@gmail.com> wrote:
> Please find attached BH Curve for A36
>
> Regards
>
> Hiren Sevak
>
>
>
> On Fri, Feb 3, 2012 at 11:28 AM, hitesh patel <hitesh....@gmail.com> wrote:
> > Dear Experts
>
> > I require the B-H curve for structural steel (ASTM A 36). Can any body
> > guide me for the same?
>
> > From where i could get this ?
>
> > Thanks
> > Hitesh Patel
>
> > --
> > To post to this group, send email to materials-welding@googlegroups.com
> > To unsubscribe from this group, send email to
> > materials-welding+unsubscribe@googlegroups.com
> > For more options, visit this group's bolg at
> >http://materials-welding.blogspot.com/
> > The views expressed/exchnaged in this group are members personel views and
> > meant for educational purposes only, Users must take their own decisions
> > w.r.t. applicable code/standard/contract documents.
>
> --
> Thanks & Regards
>
> Hiren Sevak
> Surveyor
> Bureau Veritas - Ahmedabad
> 207, Abhishree
> Opp Star India Bazaar,
> Satellite Road,
> Ahmedabad-380015
> Tel No. 079-26925491/92
>
> BH Curve A 36.pdf
> 176KViewDownload

Re: [MW:13638] B-H curve of ASTM A 36

2012-02-08T18:40:00.000+05:30

Please find attached BH Curve for A36

Regards

Hiren Sevak

On Fri, Feb 3, 2012 at 11:28 AM, hitesh patel <hitesh.tpl@gmail.com> wrote:

Dear Experts

I require the B-H curve for structural steel (ASTM A 36). Can any body guide me for the same?

From where i could get this ?

Thanks
Hitesh Patel

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Thanks & Regards

Hiren Sevak
Surveyor
Bureau Veritas - Ahmedabad
207, Abhishree
Opp Star India Bazaar,
Satellite Road,
Ahmedabad-380015
Tel No. 079-26925491/92

[MW:13635] Longitudinal weld seam staggering _Section VIII Div 2 Reg.,

2012-02-08T18:04:00.000+05:30

Dear Friends,

What is the Staggering distance between 2 Longseams of 50mm thick shells, as per Section VIII Div 2

Best regards

K C R

[MW:13636] FW: ASTM A-312 TP-347 with ER-308H filler

2012-02-08T17:45:00.000+05:30

Hi Pradip,

FYI please.

Thanks

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario, Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

From: pgoswami [mailto:pgoswami@quickclic.net]
Sent: Tuesday, February 07, 2012 8:15 PM
To: 'pradip kumar sil'
Cc: 'materials-welding@googlegroups.com'
Subject: RE: ASTM A-312 TP-347 with ER-308H filler

Hi Pradip,

You may weld Tp 347 with 308H welding consumable using the existing PQR and WPS.A change of AWS classification is a supplemental essential variable(see QW.404.12(F). 308H was developed primarily for power industry and many client prefer this to prevent creep ductility cracking which may occur later in service and is a common occurrence in boiler supreheaters and reheaters.. However if high temperature corrosion in refinery or petrochemical environment is a concern then 308H weld metal may not provide this adequately.

You need to discuss this issue with client and a reputed consumable manufacturer to be sure of the supply and quality before deciding to use this electrode.

See the attached information for your reference.

Thanks.

Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist & Consultant
Ontario, Canada.
Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net

-----Original Message-----
From: pradip kumar sil [mailto:pradipsil@gmail.com]
Sent: Tuesday, February 07, 2012 9:59 AM
To: materials-welding@googlegroups.com
Cc: pgoswami
Subject: ASTM A-312 TP-347 with ER-308H filler

Dear Sir,
My client requested to weld at ASTM A 312 TP-347 material with consumable ER-308H but i have one wps which is base material TP-347 with consumable ER-347.
Our conventional practice TP-347 material with filler ER-347 because this material has stabilizing component NIOBIAM.
Client is insisting us to weld with ER-308H even they are not approve our wps.
Can provide some metallurgical information of ER-308H/ER-347 filler material of the above mention subject.
Thanks in advance
Regards
Pradip Kr. Sil

Re: [MW:13637] What is meant by MGAL

2012-02-08T17:43:00.000+05:30

Chaitanya,
May be this will help to some extent:

EN10025-2 allows the delivery conditions +M, +N or +AR at the manufacturers discretion.

FYI: None of these delivery conditions has any impact on the mechanical properties / chemical composition as defined in EN10025-2.

Delivery condition +MGAL is not defined in EN10025, it might be an internal manufacturer's code, e.g. +M, capable of forming a zinc layer during hot-dip galvanization.

Marc May | Senior Engineer
ArcelorMittal LCE Luxembourg / Commercial Sections S.A.

Best regards,

Shashank Vagal

--- On Wed, 8/2/12, Chaitanya Purohit <chaitanya_purohit@yahoo.co.in> wrote:

From: Chaitanya Purohit <chaitanya_purohit@yahoo.co.in>
Subject: [MW:13633] What is meant by MGAL
To: materials-welding@googlegroups.com
Date: Wednesday, 8 February, 2012, 12:07 PM

Dear All,

We have procured Flat bars of 60 x 40mm size with material specification S355 J2

In the MTC, material specification is S355 J2 + MGAL as per EN10025-2:2004

Can somebody, please clarify the meaning of 'MGAL' mentioned in MTC along with Material spec / Grade

C. K. Purohit
+968 92840112

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Re: [MW:13632] 99.995 Pure Argon gas Certificate

2012-02-08T14:47:00.000+05:30

Hi,

Please find the attached files might be useful to you.

Please refer Linde website for reference http://linde-gase.de/download/Spec.Gases.e.02.02.pdf

Thanks & Regards,

(Karthik)

On Wed, Feb 8, 2012 at 3:54 PM, Jignesh Desai <jignesh.desai.met@gmail.com> wrote:

Can anybody send me 99.995 Pure Argon Pueging Gas Certificate?

I would like to know % Oxygen/Moisture (PPM) in 99.995 pure Argon Gas.

Regds/Jignesh

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[MW:13631] 99.995 Pure Argon gas Certificate

2012-02-08T14:24:00.000+05:30

Can anybody send me 99.995 Pure Argon Pueging Gas Certificate?

I would like to know % Oxygen/Moisture (PPM) in 99.995 pure Argon Gas.

Regds/Jignesh

[MW:13634] RE: 13626] P9B materials welding qualification limit with impact & without PWHT

2012-02-08T12:29:00.000+05:30

The note is clear. For material over 16mm thk shall be PWHT with any qualified WPS. But, If the material thickness under question is <16mm, then the PWHT is not mandatory subject to that, the PQR should have been qualified on same or greater thickness than the production thickness.

Limitations on essential/supplementary variables per ASME Sec IX shall also to be complied.

// While comparing the above 2 mentioned statement: Whether we need to do the welding procedure qualification for each thickness with impact & without PWHT?//

Yes. Instead you can go for PWHT which is economical.

M.Vijayan

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of kamal nathan
Sent: Tuesday, February 07, 2012 12:32 PM
To: materials-welding
Subject: [MW:13626] P9B materials welding qualification limit with impact & without PWHT

Team members,

Could one give the interpretation clarity of the below :

specs.(UDHE) also specifies that all welding procedures shall be qualified on plates not thinner than the part to be welded.)

2.Refer to ASME SEC. IX QW-403.6 which states that minimum thickness qualified is the thicknes of the test coupen or 16 mm whichever is less .

While comparing the above 2 mentioned statement: Whether we need to do the welding procedure qualification for each thickness with impact & without PWHT?

Thanks,

kamal

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

[MW:13633] What is meant by MGAL

2012-02-08T12:07:00.000+05:30

Dear All,

We have procured Flat bars of 60 x 40mm size with material specification S355 J2

In the MTC, material specification is S355 J2 + MGAL as per EN10025-2:2004

Can somebody, please clarify the meaning of 'MGAL' mentioned in MTC along with Material spec / Grade

C. K. Purohit
+968 92840112

Re: [MW:13630] Post Heating(DHT) requirement for SA 387 GR 12 CL2 LOW ALLOY MATERIAL

2012-02-08T11:27:00.000+05:30

Hi Vijay,

ASME Sec Viii Div 1 UCS-56 calls for PWHT at min. 650 deg C for P No 4, Class 1/2, if thickness
is above 16mm (refer Note 2).

As reported by you, PQR mention PWHT of 300 Deg C which is not code complaint of base metal
thickness is above 16mm.
PWHT requirements are generally 1,150 to 1,400 F (621 to 760 C) for one hour. PWHT helps rid
the weld of hydrogen that may have been picked up from the filler metal, the base metal, or the
atmosphere and can help minimize the chances of cracking. Most low-alloy filler metals designed
for chrome-moly applications also come with recommended stress-relieving temperatures and
durations, either on the package label or on the included specification sheet.

Does your application require Impact testing? if yes then I suggest plates must be ordered with
Quench and Temper Heat Treatment, Extended time at PWHT has detrimental effect on impact values
therefore Plates must be ordered with expected PWHT cycles (min 2, accounting PWHT repair),
Usually client specification would entail these requirements.

Please refer ASME Sec ix QW-407 for P no. 4, if you qualify PQR with PWHT @300 Deg C, then
production welding must not exceed lower transformation temperature and also QW-407.2 for PWHT repairs.

ASTM A387 implies that Tempering temperature shall be min.620 deg C, whatever it is but make
sure "Tempering Temperature is 30 deg C above PWHT Temperature".

Please notify if above does not make sense to you.

Regards
Manpreet Singh

On Tue, 07 Feb 2012 07:09:08 +0530 wrote
>Dear All,
Regarding post heat treatment(DHT) for SA 387 GR 12 CL2 Low alloy steel material,
I have PQR'S with post heating a temperature of 300 Degree C for 2 Hrs,
My question are,
1) Is it possible to make WPS (production weld) without post heating(DHT)?

2) Is it any code(ASME SEC VIII or IX) call for DHT after welding?
3) Why we have to do DHT, if it is required?
4) Is it any where mentioned that the SA 387 GR 12 CL2 material is required post heating(DHT)?
we are doing DHT because avoid cold cracking(Hydrogen cracking) in weld and HAZ . any other
major reason to carry out DHT for low alloy steel.

Kindly provide your valuable guidance/ advice/ experiance on this subject.

Regards

Vijay Katkar

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[MW:13629] RE: 13616] Welding 90Cu-10Ni to Carbon Steel.

2012-02-08T06:57:00.000+05:30

Dear Sutthipong K.

The WPS with 90Cu+10Ni(P-No.34) weld to Carbonsteel(P-No.1);
By GTAW process you can try use wire ERNiCu-7 (N04060) ANSI/AWS A5.14

Regards
Ibnuziad

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of LeONarD P
Sent: 06 Februari 2012 15:15
To: Materials & Welding
Subject: [MW:13616] Welding 90Cu-10Ni to Carbon Steel.

Dear Expert,

If I will qualified WPS with 90Cu+10Ni(P-No.34) weld to Carbon
steel(P-No.1);
By GTAW process. Can I choose the type of welding rod for
welding ? .Please reply
me in the light of ASME SEC IX.

Thanks in advance

Sutthipong K.

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The views expressed/exchnaged in this group are members personel views and
meant for educational purposes only, Users must take their own decisions
w.r.t. applicable code/standard/contract documents.

[MW:13628] ASTM A-312 TP-347 with ER-308H filler

2012-02-07T20:29:00.000+05:30

Dear Sir,
My client requested to weld at ASTM A 312 TP-347 material with
consumable ER-308H but i have one wps which is base material TP-347
with consumable ER-347.
Our conventional practice TP-347 material with filler ER-347 because
this material has stabilizing component NIOBIAM.
Client is insisting us to weld with ER-308H even they are not approve our wps.
Can provide some metallurgical information of ER-308H/ER-347 filler
material of the above mention subject.
Thanks in advance
Regards
Pradip Kr. Sil

[MW:13627] RE: 13615] NORMALIZING OF DIHED HEAD AFTER HOT FORMING

2012-02-07T18:23:00.000+05:30

// As per Hot Forming Procedure after reaching soaking temperature of 920 deg celsius and holding for 1 hour, Hot forming operation was performed outside the furnace and immediately after hot forming dished head was put back in the furnace and temperature was again increased upto 920 dec celsisus before transferring dished head in Shop Floor for cooling.//

Generally the necessary heat treatments shall be applied after the specific fabrication process. Here the dish end heated to 920 deg C for ease of fabrication and as part of fabrication and could not be considered as heat treatment. The heat treatment if any shall be done separately followed by fabrication.

// Contractor has not performed Normalizing sepratley after Hot forming//

Normalising shall be done after forming as a separate process. After forming, the dish end shall be brought to at least 425 deg C and reheated to normalizing temperature. ref UCS-56d1.

// as per reports test coupon has also undergone only ONE Normalizing Cycle.//

The test coupon also shall undergo the same heat treatment cycle as required for the final vessel. (here the hot forming cannot be considered as heat treatment and can omit for test coupon.) Ref UCS-85(c)

// Please advise whther Normalizing can be avoided as the hot forming was done at Normalizing temperature. //

Hope the above clarifies the situation.

M.Vijayan

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of asad azmi
Sent: Monday, February 06, 2012 9:59 AM
To: materials-welding@googlegroups.com
Subject: [MW:13615] NORMALIZING OF DIHED HEAD AFTER HOT FORMING

Dear All,

Greetings.

A Vessel has to be fabricated as per ASME SEC VIII DIV 1. Vessel requires SPWHT as per Client requirment.

A Dished head of material SA 387 GR 12 CL2, Normalized and Tempered - 80 mm Thickness, has been HOT Formed at temperature 920 deg. Celsius.

As per Hot Forming Procedure after reaching soaking temperature of 920 deg celsius and holding for 1 hour, Hot forming operation was performed outside the furnace and immediately after hot forming dished head was put back in the furnace and temperature was again increased upto 920 dec celsisus before transferring dished head in Shop Floor for cooling.

As per ARAMCO Standard Noramilizing and tempering shall be perforemd as seprate operation after Hot forming as per below clause.

13.2.14.1 Heat-treatment, as a separate operation, shall be performed after a forming operation (hot or cold) for any of the conditions listed below. The heat treatment shall be annealing, normalizing, normalizing and tempering, or quench and tempering, as required.

Please be informed that as per hot forming procedure Noramalizing after forming has to be performed at 920 Deg Celsius.

Contractor has not performed Normalizing sepratley after Hot forming. as per reports test coupon has also undergone only ONE Normalizing Cycle.

Please advise whther Normalizing can be avoided as the hot forming was done at Normalizing temperature.

As per ARAMCO requirement Heat treatment cycle for Dished head & Test coupon should be Hot forming + Normalizing + tempering + SPWHT.

Please suggest.

Thanks in advance.

Regards

Asad Azmi

[MW:13626] P9B materials welding qualification limit with impact & without PWHT

2012-02-07T15:02:00.000+05:30

Team members,

Could one give the interpretation clarity of the below :

1.Refer to ASME SEC.VIII .DIV.1 UCS-56 table for P9B materials under
note 3 (a) which states that qualification has to be done in equal or
greater thickness than the production weld thickness(Our customer
specs.(UDHE) also specifies that all welding procedures shall be
qualified on plates not thinner than the part to be welded.)

2.Refer to ASME SEC. IX QW-403.6 which states that minimum thickness
qualified is the thicknes of the test coupen or 16 mm whichever is
less .

While comparing the above 2 mentioned statement: Whether we need to
do the welding procedure qualification for each thickness with impact
& without PWHT?

Thanks,
kamal

[MW:13625] Re: Welding 90Cu-10Ni to Carbon Steel.

2012-02-07T11:41:00.000+05:30

Weld with RN60 (NiCu-3). Some codes still allow RN82 (NiCrFe) but are
moving away because the Cr is not needed. If you are doing open root
pipe, a purged root bends nicer.
Bob.

On Feb 6, 12:15 am, LeONarD P <metp...@gmail.com> wrote:
> Dear Expert,
>
> If I will qualified WPS with 90Cu+10Ni(P-No.34) weld to Carbon
> steel(P-No.1);
> By GTAW process. Can I choose the type of welding rod for
> welding ? .Please reply
> me in the light of ASME SEC IX.
>
> Thanks in advance
>
> Sutthipong K.

[MW:13624] Re: NORMALIZING OF DIHED HEAD AFTER HOT FORMING

2012-02-07T11:07:00.000+05:30

Dear Azmi,

According to 32-SAMSS-004 paragraph 13.2.14,heat treatment such as
normalizing,annealing,normalizing and tempering or quench and
tempering shall be performed after forming operation for heads or
other double –curvature components with nominal thickness exceeding 50
mm and / or any hot formed components.

This requirement may cause a problem when tempering operation is done
at mill because subsequent teat treatment above tempering temperature
at mill will ruin the mechanical properties certified at mill. Many
mills produce heavy wall plates using tempering process to meet
mechanical properties required by project specifications.

Recently ARAMCO revised the same paragraph of 32-SAMSS-004 to allow
PWHT as the heat treatment for the parts.

The temperature of PWHT can be set below the tempering temperature ,so
it will not be a problem.

Thanks & regards,
R.Lenin
QA/QC Engineer,
GHI

On Feb 6, 9:58 am, asad azmi <azmiasada...@gmail.com> wrote:
> Dear All,
>
> Greetings.
>
> A Vessel has to be fabricated as per ASME SEC VIII DIV 1. Vessel requires
> SPWHT as per Client requirment.
>
> A Dished head of material SA 387 GR 12 CL2, Normalized and Tempered - 80
> mm Thickness, has been *HOT Formed at temperature 920 deg. Celsius*.
>
> As per Hot Forming Procedure after reaching soaking temperature of 920 deg
> celsius and holding for 1 hour, Hot forming operation was performed
> outside the furnace and immediately after hot forming dished head was put
> back in the furnace and temperature was again increased upto 920 dec
> celsisus before transferring dished head in Shop Floor for cooling.
>
> *As per ARAMCO Standard Noramilizing and tempering shall be perforemd as
> seprate operation after Hot forming as per below clause.*
>
> 13.2.14.1 Heat-treatment, as a separate operation, shall be performed after
> a forming operation (hot or cold) for any of the conditions listed below.
> The heat treatment shall be annealing, normalizing, normalizing and
> tempering, or quench and tempering, as required.
>
> Please be informed that as per hot forming procedure Noramalizing after
> forming has to be performed at 920 Deg Celsius.
>
> Contractor has not performed Normalizing sepratley after Hot forming. as
> per reports test coupon has also undergone only ONE Normalizing Cycle.
>
> *Please advise whther Normalizing can be avoided as the hot forming was
> done at Normalizing temperature. *
> **
> *As per ARAMCO requirement Heat treatment cycle for Dished head & Test
> coupon should be Hot forming + Normalizing + tempering + SPWHT.*
> **
> *Please suggest.*
> **
> *Thanks in advance.*
> **
> *Regards*
> **
> *Asad Azmi*

[MW:13623] RE: 13610] Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)

2012-02-07T09:51:00.000+05:30

Impact test is required for materials such as shell, head, flanges and fittings, stiffener plate or any attachment, if welded to pressure retaining parts, whether internal or external, used for structural integrity, shall be impact tested.

In your case, if SP1 is used in design for structural integrity, then it requires to be impact tested at the same governing MDMT. Please check with your designer. But however, SP2 does not require impact test, since, it is not welded to pressure retaining part. (ref UCS.66)

M.Vijayan

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Aly
Sent: Saturday, February 04, 2012 9:05 AM
To: materials-welding@googlegroups.com
Subject: [MW:13610] Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)

Dear Expert,

Kindly advise on following;

Suppose I have a vessel with MDMT minus 48deg C, we have support plate (SP1) (inside the vessel) welded with vessels, on which I am going to weld another support plate (Sp2),

My question is whether this (SP1 & SP2) required to have impact tested to minus 46deg C or only SP1?

Similarly would saddle supports of this vessel require matl with impact testing.

Thank you in advance..

Ali Mhaskar

UAE

Re: [MW:13622] Welding 90Cu-10Ni to Carbon Steel.

2012-02-07T09:14:00.000+05:30

Hi,

For dissimilar Welding of Cu-Ni steel with carbon steel by GTAW, first Carbon Steel side may be overlayed first with ERNi-1 or ERNiCu-7 and then weld with AWS A5.14 ERNiCu-7 (N04060) . Also please find below the details might be useful to you.

Gas Tungsten Arc Welding

The GTAW process is the preferred process for welding thin gage material, 1/16 in. (1.6mm) and less, but can be a good choice for gages up to about 1/8 in. (3.2mm). The all-position operability characteristic makes it an excellent process for pipe welding, particularly for small diameter pipe and the root pass of all pipe diameters. After a GTAW root pass in heavier pipe, the weld is often completed by GMAW or SMAW. Automatic GTAW equipment is available for applications such as tube to tube sheet welds, orbital pipe welding and joining sheet gages.

Cu-Ni welds made without the addition of the deoxidized filler material very often have excessive porosity that is not apparent on the weld surface. For this reason autogenous GTA welds should be avoided. Other good welding practices to avoid porosity include a short arc, about 0.03 inches (0.8mm) and ample weld metal shielding to exclude air from the molten weld metal. Argon is the usual shielding gas and preferred for purging the inside of pipes during root pass welding.

Representative parameters for GTAW Cu-Nis are shown in Table 4. As with the other arc welding processes, the high conductivity, lower nickel alloys require currents on the high end of the range. Where possible, copper or Cu-Ni backing bars are favored.

Table 4. Representative Gas Tungsten Arc Welding

ERCuNi filler, direct current, straight polarity

Thickness (in.) Electrode Size (in.) Filler Wire (in.) Current (amps) Argon Flow (cfh)

1/16 1/8 1/16 100 - 140 15 - 20

1/8 1/8 1/8 140 - 200 15 - 20

1/4 1/8 1/8 - 3/16 180 - 260 20 - 30

3/8 1/8 - 3/16 1/8 - 3/16 260 - 320 20 - 30

1/2 3/16 1/8 - 3/16 320 - 400 20 - 30

Dissimilar Metal Joining and Weld Overlaying

Suggested filler metal for joining Cu-Ni alloys to some of the commonly combined other alloys is shown in Table 6. The listing is not intended to be exclusive in that welding procedures could be developed using filler metals not listed.

Table 6 Filler Metals for Dissimilar Metal Welds

Metal to be joined to Cu-Ni SMAW (UNS) GMAW and GTAW (UNS) Comments

ANSW/AWS A5.6 ANSI/AWS 5.7

Copper ECuNi (W60715) or ECuA1-A2 (W60614) ERCuA1-A2 (71580) or ERCuA1-A2 (C61800) Preheat to 1000°F (540°C)

Phosphor bronzes ECuSn-A (W60518) ERCuSn-A (C51800) -

All bronzes ECuA1-A2 (W60614) ERCuNl (C61800) -

ANSI/AWS A5.11 ANSI/AWS A5.14

Carbon steel ENiCu-6 (W84190) ERNiCu-7 (N04060) Steel side may be overlayed first with ERNi-1 or ERNiCu-7

Austinetic stainless steels ENi-1 (W82141) or ENiCrFe-2 (W86133) ERNi-1 (N02161) or ERNiCr-3 (N06082) Stainless side may be overlayed first with ERNi-1

The 70-30 Cu-Ni welds have a limited tolerance for dilution by iron. Welds with more than about 10% iron tend to have excessive fissures and develop hot cracks. The ENiCu-7 and ERNiCu-7 fillers (65Ni-Cu) have a higher tolerance for iron and are used in joining to carbon steels. However, they are not a good choice in welding to stainless steels because of limited tolerance for dilution by chromium.

Often a very useful step in making Cu-Ni dissimilar metal welds is to overlay or butter the other metal with nickel, nickel-copper or any other appropriate filler shown in Table 6. In applying Cu-Ni overlays on steel, the usual practice is to apply a first layer with ERNi-1 or ERNiCu-7 and then ERCuNi for subsequent layers. Although a high alloy barrier layer is standard, it is possible to apply ERCuNi by GMAW directly on carbon steel with carefully controlled welding procedures designed to achieve relatively low iron dilution on the first layer.

The submerged arc welding (SAW) process is ideally suited for overlaying large surface areas. Commercial submerged arc fluxes are available for all the nickel, nickel-copper and Cu-Ni filler metals. In overlaying carbon steel, the first layer is applied using either an ERNi-1 or ERNiCu-7

filler metal followed by subsequent layers of ERCuNi to reach the needed thickness or composition.

Brazing with BAg-1a, BAg-1 and BAg-2 is suitable for joining Cu-Ni to any other copper alloy.

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

German-Thai Boiler Engineering Cooperation Limited.

Rayong Factory ;

379 Moo.6 Soi 8, Tambol Pananikom,

Nikompattana, Rayong 21180 THAILAND

Tel : +66 38 897 035-9 Ext. 137

Fax : +66 38 897 034

Hand Phone: 0066 892512282

From: LeONarD P <metpick@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Monday, February 6, 2012 3:15 PM
Subject: [MW:13616] Welding 90Cu-10Ni to Carbon Steel.

Dear Expert,

If I will qualified WPS with 90Cu+10Ni(P-No.34) weld to Carbon
steel(P-No.1);
By GTAW process. Can I choose the type of welding rod for
welding ? .Please reply
me in the light of ASME SEC IX.

Thanks in advance

Sutthipong K.

--
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

[MW:13621] Thermal Cutting Procedure for Clad Plate(SA 516 Gr 70 + Alloy 825) / Please Share

2012-02-06T20:06:00.000+05:30

Dear Technical Experts,

We are a company fabricating ASME Pressure Vessel and require your support for the subject matter for our project.

The base material is SA 516 Gr 70, 30 mm thick – Arcelor Mtthal

The Clad Material is Alloy 825, 4 mm thick – Thyseen Krupp

Process- Explosion Bonding

We require your assistance to understand the correct methodology to cut the Explosion Bonded Plate without any damage.

Hope to see you technical support as usual in this matter and any specific precaution to be considered during the thermal cutting process of above said plates. Please share any Procedure for subject.

Thanks & Regards

Vino - Doha, Qatar

Re: [MW:13620] NORMALIZING OF DIHED HEAD AFTER HOT FORMING

2012-02-06T19:06:00.000+05:30

dear,

normalising cannot be avoided even if dish is hot formed in normalising range.

vanchi

On Mon, Feb 6, 2012 at 12:28 PM, asad azmi <azmiasadayub@gmail.com> wrote:

Dear All,

Greetings.

A Vessel has to be fabricated as per ASME SEC VIII DIV 1. Vessel requires SPWHT as per Client requirment.

A Dished head of material SA 387 GR 12 CL2, Normalized and Tempered - 80 mm Thickness, has been HOT Formed at temperature 920 deg. Celsius.

As per Hot Forming Procedure after reaching soaking temperature of 920 deg celsius and holding for 1 hour, Hot forming operation was performed outside the furnace and immediately after hot forming dished head was put back in the furnace and temperature was again increased upto 920 dec celsisus before transferring dished head in Shop Floor for cooling.

As per ARAMCO Standard Noramilizing and tempering shall be perforemd as seprate operation after Hot forming as per below clause.

13.2.14.1 Heat-treatment, as a separate operation, shall be performed after a forming operation (hot or cold) for any of the conditions listed below. The heat treatment shall be annealing, normalizing, normalizing and tempering, or quench and tempering, as required.

Please be informed that as per hot forming procedure Noramalizing after forming has to be performed at 920 Deg Celsius.

Contractor has not performed Normalizing sepratley after Hot forming. as per reports test coupon has also undergone only ONE Normalizing Cycle.

Please advise whther Normalizing can be avoided as the hot forming was done at Normalizing temperature.

As per ARAMCO requirement Heat treatment cycle for Dished head & Test coupon should be Hot forming + Normalizing + tempering + SPWHT.

Please suggest.

Thanks in advance.

Regards

Asad Azmi

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[MW:13618] FW: 13616] Welding 90Cu-10Ni to Carbon Steel.

2012-02-06T17:55:00.000+05:30

Please inform us with the exact application usage of this joint (90cu+10Ni &
carbon steel) ??

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of LeONarD P
Sent: Monday, February 06, 2012 10:15 AM
To: Materials & Welding
Subject: [MW:13616] Welding 90Cu-10Ni to Carbon Steel.

Dear Expert,

If I will qualified WPS with 90Cu+10Ni(P-No.34) weld to Carbon
steel(P-No.1);
By GTAW process. Can I choose the type of welding rod for
welding ? .Please reply
me in the light of ASME SEC IX.

Thanks in advance

Sutthipong K.

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The views expressed/exchnaged in this group are members personel views and
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w.r.t. applicable code/standard/contract documents.

Re: [MW:13618] Re: Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)

2012-02-06T17:50:00.000+05:30

Dear Mr. Ali,

I like to share my views on this subject and let's concentrate discussions on ASME Section viii Div. 1.

As per UCS-66, any attachment which is essential for structural integrity of the vessels when welded to pressure retaining components shall be considered as separate component and to be checked for impact testing w.r.t to material specification, MDMT and thickness limits.

Pl note that structural integrity of the part has to be confirmed by designer.

With Best Regards,

Jignesh R Rana
Manager - Materials Technology, QA/QC & Standards

Linde Engineering India Pvt. Ltd.
'Linde House'
Opp: VUDA Office, VIP Road, Karelibaug,Vadodara - 390018, India.
Tel.: +91 265 3056789, Fax: +91 265 2335213 , Mobile: +91 90999 86019
jignesh.rana@linde-le.com, www.linde-india.com

This e-mail is confidential. If you are not the intended recipient, please notify us immediately. You should not disclose its contents to any other person nor use it for any purposes.

"mohd.qce" ---05-02-2012 21:35:57---dear aly, what absorb from ur mail is u mean to say WPS to be impact tested

From: "mohd.qce" <mohd52100@gmail.com>
To: "Materials & Welding" <materials-welding@googlegroups.com>
Date: 05-02-2012 21:35
Subject: [MW:13613] Re: Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)
Sent by: materials-welding@googlegroups.com

dear aly, what absorb from ur mail is u mean to say WPS to be impact tested correct.Then non pressure welding does not requre impact tested.u can use WPS without having a impact tested. regards, mohd. On Feb 4, 9:05 am, "Aly" <mhaskar....@gmail.com> wrote: > Dear Expert, > > Kindly advise on following; > > Suppose I have a vessel with MDMT minus 48deg C, we have support plate (SP1) > (inside the vessel) welded with vessels, on which I am going to weld another > support plate (Sp2), > > My question is whether this (SP1 & SP2) required to have impact tested to > minus 46deg C or only SP1? > > Similarly would saddle supports of this vessel require matl with impact > testing. > > Thank you in advance.. > > Ali Mhaskar > UAE > > imstp_animation_butterflies_en_020908.gif > 42KViewDownload -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg athttp://materials-welding.blogspot.com/The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Re: [MW:13617] Welding 90Cu-10Ni to Carbon Steel.

2012-02-06T15:23:00.000+05:30

Use SFA 5.14 ER NiCu-7.

Thanks & Regards J.Gerald Jayakumar 0091-9344954677

From: LeONarD P <metpick@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Monday, February 6, 2012 1:45 PM
Subject: [MW:13616] Welding 90Cu-10Ni to Carbon Steel.

[MW:13616] Welding 90Cu-10Ni to Carbon Steel.

2012-02-06T13:45:00.000+05:30

Dear Expert,

If I will qualified WPS with 90Cu+10Ni(P-No.34) weld to Carbon
steel(P-No.1);
By GTAW process. Can I choose the type of welding rod for
welding ? .Please reply
me in the light of ASME SEC IX.

Thanks in advance

Sutthipong K.

[MW:13615] NORMALIZING OF DIHED HEAD AFTER HOT FORMING

2012-02-06T12:28:00.000+05:30

Dear All,

Greetings.

A Vessel has to be fabricated as per ASME SEC VIII DIV 1. Vessel requires SPWHT as per Client requirment.

A Dished head of material SA 387 GR 12 CL2, Normalized and Tempered - 80 mm Thickness, has been HOT Formed at temperature 920 deg. Celsius.

As per ARAMCO Standard Noramilizing and tempering shall be perforemd as seprate operation after Hot forming as per below clause.

Please be informed that as per hot forming procedure Noramalizing after forming has to be performed at 920 Deg Celsius.

Contractor has not performed Normalizing sepratley after Hot forming. as per reports test coupon has also undergone only ONE Normalizing Cycle.

Please advise whther Normalizing can be avoided as the hot forming was done at Normalizing temperature.

As per ARAMCO requirement Heat treatment cycle for Dished head & Test coupon should be Hot forming + Normalizing + tempering + SPWHT.

Please suggest.

Thanks in advance.

Regards

Asad Azmi

[MW:13614] MW:13609-Post Heating(DHT) requirement for SA 387 GR 12 CL2 LOW ALLOY MATERIAL

2012-02-05T23:18:00.000+05:30

Hi Vijay,

The purpose of DHT is to drive out hydrogen to minimize the risk of hydrogen cracking, and to minimize problems due to low as-welded toughness. This is a suggested practice in API-934C. The DHT should be performed at a minimum metal temperature of 570 °F (300 °C) for duration of one hour minimum(934C).

ASME Sec-IX addresses DHT as post-heating. The prime function of this practice is to dissipate the diffusible hydrogen in the weld metal. Many a time if the section thickness is less (typically below 2 inch or below) and if welding consumables are properly conditioned as per manufacturer's recommendations this practice of DHT/Post Heating may be avoided.

However if the section thickness of the equipment is large (typically 3" and above) and intended service would hydrogen related services (which is to be confirmed by the client), DHT would a good and recommended practice.

Note:-This is a not an essential variable.Addition or deletion would not call for requalification of welding procedures. However if DHT was followed during PQR qualification and if project technical requirement incorporates API 934C specification, DHT needs to be performed in the production welds also.

Thanks.

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario, Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Vijay Katkar
Sent: Saturday, February 04, 2012 12:06 PM
To: materials-welding@googlegroups.com
Subject: [MW:13609] Post Heating(DHT) requirement for SA 387 GR 12 CL2 LOW ALLOY MATERIAL

Dear All,
Regarding post heat treatment(DHT) for SA 387 GR 12 CL2 Low alloy steel material,
I have PQR'S with post heating a temperature of 300 Degree C for 2 Hrs,
My question are,
1) Is it possible to make WPS (production weld) without post heating(DHT)?
2) Is it any code(ASME SEC VIII or IX) call for DHT after welding?
3) Why we have to do DHT, if it is required?
4) Is it any where mentioned that the SA 387 GR 12 CL2 material is required post heating(DHT)?
we are doing DHT because avoid cold cracking(Hydrogen cracking) in weld and HAZ . any other major reason to carry out DHT for low alloy steel.

Kindly provide your valuable guidance/ advice/ experiance on this subject.

Regards

Vijay Katkar

[MW:13613] Re: Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)

2012-02-05T18:09:00.000+05:30

dear aly,

what absorb from ur mail is u mean to say WPS to be impact tested
correct.Then non pressure welding does not requre impact tested.u can
use WPS without having a impact tested.

regards,
mohd.

On Feb 4, 9:05 am, "Aly" <mhaskar....@gmail.com> wrote:
> Dear Expert,
>
> Kindly advise on following;
>
> Suppose I have a vessel with MDMT minus 48deg C, we have support plate (SP1)
> (inside the vessel) welded with vessels, on which I am going to weld another
> support plate (Sp2),
>
> My question is whether this (SP1 & SP2) required to have impact tested to
> minus 46deg C or only SP1?
>
> Similarly would saddle supports of this vessel require matl with impact
> testing.
>
> Thank you in advance..
>
> Ali Mhaskar
> UAE
>
> imstp_animation_butterflies_en_020908.gif
> 42KViewDownload

Re: [MW:13612] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-02-05T16:32:00.000+05:30

I suppose you have Qualified PQR (not WPS) with Backing. You can prepare a WPS without Backing using the same PQR as per ASME Sec.IX. Use this WPS for Welder Qualification without Backing.

Thanks & Regards J.Gerald Jayakumar 0091-9344954677

From: Aly <mhaskar.aly@gmail.com>
To: materials-welding@googlegroups.com
Sent: Saturday, February 4, 2012 10:48 AM
Subject: Re: [MW:13608] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

Dear Experts,

Thank you all for sparing time for reply;

Further, Can you advise on Mr. Vijayan Reply as he is saying that as I don't have qualified WPS without backing how can I qualify the welder without backing.

Can't I qualify a welder for "without backing" as per WPS without baking?

Ali Mhaskar

-------Original Message-------

From: vijayan

Date: 02/02/2012 16:45:08

To: materials-welding@googlegroups.com

Subject: [MW:13603] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

A welder can basically qualified on a qualified WPS. In your case, the WPS is with backing but the welder is qualified without backing which is conflicting. Even though the deletion of backing is not an essential variable for a WPS, either you have to rewrite the WPS with backing (if qualified for that) or have to qualify the welder on without backing WPS. In addition, the WPS number shall be reflected in the welder qualification certificate.

See the excerpt below from Sec IX which clearly states the performance qualification on qualified WPS

M.Vijayan

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Aly
Sent: Tuesday, January 31, 2012 8:07 PM
To: materials-welding@googlegroups.com
Subject: [MW:13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

Dear experts,

Could you please clarify following;

If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

[MW:13609] Post Heating(DHT) requirement for SA 387 GR 12 CL2 LOW ALLOY MATERIAL

2012-02-04T22:36:00.000+05:30

[MW:13610] Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)

2012-02-04T11:35:00.000+05:30

Dear Expert,

Kindly advise on following;

Suppose I have a vessel with MDMT minus 48deg C, we have support plate (SP1) (inside the vessel) welded with vessels, on which I am going to weld another support plate (Sp2),

My question is whether this (SP1 & SP2) required to have impact tested to minus 46deg C or only SP1?

Similarly would saddle supports of this vessel require matl with impact testing.

Thank you in advance..

Ali Mhaskar

UAE

Re: [MW:13608] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-02-04T10:48:00.000+05:30

Dear Experts,

Thank you all for sparing time for reply;

Further, Can you advise on Mr. Vijayan Reply as he is saying that as I don't have qualified WPS without backing how can I qualify the welder without backing.

Can't I qualify a welder for "without backing" as per WPS without baking?

Ali Mhaskar

-------Original Message-------

From: vijayan

Date: 02/02/2012 16:45:08

To: materials-welding@googlegroups.com

Subject: [MW:13603] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

See the excerpt below from Sec IX which clearly states the performance qualification on qualified WPS

M.Vijayan

Dear experts,

Could you please clarify following;

If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

[MW:13611] B-H curve of ASTM A 36

2012-02-03T11:28:00.000+05:30

Dear Experts

I require the B-H curve for structural steel (ASTM A 36). Can any body guide me for the same?

From where i could get this ?

Thanks
Hitesh Patel

[MW:13606] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-02-02T20:49:00.000+05:30

Backing is a non-essential variable, QW-402.5, for most common welding processes.

ASME Section IX addresses non-essential variables in QW-200.1(c) thusly;

“Changes may be made in the nonessential variables of a WPS to suit production requirements without requalification provided such changes are documented with respect to the essential, nonessential, and, when required, supplementary essential variables for each process. This may be by amendment to the WPS or by use of a new WPS.”

So:

(1) Your weld must be within the qualified ranges for all the essential variables and, if impact testing is required, supplementary essential variables.

(2) Your WPS must be revised/or new WPS written to allow the “new” non-essential variable

(3) Your weldor must be properly qualified per Article III (if required)

John A. Henning

Welding & Materials

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Aly
Sent: Tuesday, January 31, 2012 11:07 AM
To: materials-welding@googlegroups.com
Subject: [MW:13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

Dear experts,

Could you please clarify following;

If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

Re: [MW:13607] use ER316L to weld A312 TP 321

2012-02-02T19:12:00.000+05:30

usaully SS 321 /310 materials used for high temperature service such as flare tips , Fired heater coils etc and you need to use ER 347 Ti /E 347 Ti consuambles
Frnacis
----- Original Message -----
From: Mumtaz Ali Khan <mumtaz.ali662000@gmail.com>
To: materials-welding@googlegroups.com
Sent: Thu, 2 Feb 2012 16:24:28 +0530 (IST)
Subject: Re: [MW:13604] use ER316L to weld A312 TP 321

ER347 for GTAW&E347 for SMAW process.316 will not work on such high temprature

On 2/2/12, Ramin Kondori <raminkondori@gmail.com> wrote:
> Normally 321 grade is being used because of its high temperature
> corrosion resistance and I do not think the designer has specified
> 321 just for fun...!!!
> By welding it with E316-L you won't have the same high temperature
> properties in weld area. because the weld metal will no longer be full
> austenitic and will fail at high temperatures.
>
> If that is not a problem then go ahead but I do not recommend that...!!!
>
> Regards
> Ramin Kondori
> IWE AT 0070
>
> On 2/2/12, Mohamed Elsayed ( BTG) <MElsayed@ccc.ae> wrote:
>> Gents,
>>
>> I need your valuable advice on following.
>>
>>
>>
>> We have some joints in for Flare package ,
>>
>>
>>
>> Can we use ER316L filler wire to weld
>>
>> 1- butt welded joints A312 TP 321
>>
>> 2- Butt welded Joints A403 WP 321
>>
>>
>>
>> Separatly ,
>>
>>
>>
>> We have supporting PQR USING ER316L welded material A240 316L , can
>> this PQR suppot welding
>>
>> 1- butt welded joints A312 TP 321
>>
>> 2- Butt welded Joints A403 WP 321
>>
>>
>>
>> Waitting your reply ASAP
>>
>>
>>
>> Thanks
>>
>> Mohamed
>>
>>
>>
>> --
>> To post to this group, send email to materials-welding@googlegroups.com
>> To unsubscribe from this group, send email to
>> materials-welding+unsubscribe@googlegroups.com
>> For more options, visit this group's bolg at
>> http://materials-welding.blogspot.com/
>> The views expressed/exchnaged in this group are members personel views and
>> meant for educational purposes only, Users must take their own decisions
>> w.r.t. applicable code/standard/contract documents.
>>
>
>
> --
> Ramin Kondori
> * QC/Welding Engineer *
> * IWE AT 0070*
>
>
> *با تشكر*
>
> * *
>
> *رامين كندري*
>
> واحد كنترل و تضمين كيفيت كارگاه ال ان جي كنگان
>
> شركت نارديس انرژي
>
> تلفن: 07727462189 داخلي 172 و171
>
> فكس: 07727462179
>
> همراه: 09132150320
>
> آدرس: كنگان - سايت LNG - دفتر شركت نارديس
>
> صندوق پستي 375 (اداره پست شهرستان كنگان)
>
>
>
> *Regards*
>
> *Ramin Kondori*
>
> QA/QC Manager
>
> IRAN-LNG Preoject
>
> NARDIS ENERGY CO.
>
> * *
>
> *Tel.: +98-772-7462189 (Int.171, 172)*
>
> *Fax: +98-772-7462179*
>
> *Cell: +98-913-215-0320*
>
> * Add.(Head office): No.27, 6th St., Seyed Jamalledin-e-Asad Abadi Ave.,
> Tehran, Iran, 1431784891*
> *Add.(Site): NARDIS Office, IRAN-LNG Plant, Kangan-Iran P.O.Box 375(Kangan
> Post Office) *
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@googlegroups.com
> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
>

Re: [MW:13605] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-02-02T17:22:00.000+05:30

The backing is not a parameter for WPS qualification in ASME IX

best regards

Dr. Georgios Dilintas

Authorized Nuclear Inspector
Authorized Inspector Supervisor

I&F Regional Technical Manager
Bureau Veritas Piraeus - Greece
Tel: +30 210 40 63 113/4
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04
"Aly" <mhaskar.aly@gmail.com>

"Aly" <mhaskar.aly@gmail.com>

Sent by: materials-welding@googlegroups.com

31/01/2012 19:07

Please respond to
materials-welding@googlegroups.com

To	<materials-welding@googlegroups.com>
cc
Subject	[MW:13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing
Ref

Dear experts,

Could you please clarify following;

If I have qualified

WPS with backing

& qualified Welder

without backing

; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

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Re: [MW:13604] use ER316L to weld A312 TP 321

2012-02-02T16:24:00.000+05:30

ER347 for GTAW&E347 for SMAW process.316 will not work on such high temprature

[MW:13603] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-02-02T14:24:00.000+05:30

See the excerpt below from Sec IX which clearly states the performance qualification on qualified WPS

M.Vijayan

Dear experts,

Could you please clarify following;

If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

[MW:13602] FW: 13597] use ER316L to weld A312 TP 321

2012-02-02T13:47:00.000+05:30

A312 TP 321 & A403 WP 321 is P no#8 Gr no# 1 cab be welded with ER316L but it is preferable to use 347 but take care for the following :

For the case of your PQR it is OK to use the same PQR

Senior QC Eng.

Orascom Construction Egypt

+20 122 5880434

+20 55 2570754

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Mohamed Elsayed ( BTG)
Sent: Thursday, February 02, 2012 7:40 AM
To: materials-welding@googlegroups.com
Subject: [MW:13597] use ER316L to weld A312 TP 321

Gents,

I need your valuable advice on following.

We have some joints in for Flare package ,

Can we use ER316L filler wire to weld

1- butt welded joints A312 TP 321

2- Butt welded Joints A403 WP 321

Separatly ,

We have supporting PQR USING ER316L welded material A240 316L , can this PQR suppot welding

1- butt welded joints A312 TP 321

2- Butt welded Joints A403 WP 321

Waitting your reply ASAP

Thanks

Mohamed

[MW:13601] FW: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-02-02T13:13:00.000+05:30

Yes u can use ….. your welder is qualified for with/without backing …. WPS backing removal is non essential variable

Nonessential Variable (Procedure)

A change in a welding condition which will not affect the mechanical properties of a weldment (such as joint design, method of back gouging or cleaning, etc.)

Best Regards

Ahmed Osman

Senior QC Eng.

Orascom Construction Egypt

+20 122 5880434

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Aly
Sent: Tuesday, January 31, 2012 7:07 PM
To: materials-welding@googlegroups.com
Subject: [MW:13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

Dear experts,

Could you please clarify following;

If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

Re: [MW:13600] use ER316L to weld A312 TP 321

2012-02-02T13:01:00.000+05:30

Normally 321 grade is being used because of its high temperature
corrosion resistance and I do not think the designer has specified
321 just for fun...!!!
By welding it with E316-L you won't have the same high temperature
properties in weld area. because the weld metal will no longer be full
austenitic and will fail at high temperatures.

If that is not a problem then go ahead but I do not recommend that...!!!

Regards
Ramin Kondori
IWE AT 0070

On 2/2/12, Mohamed Elsayed ( BTG) <MElsayed@ccc.ae> wrote:
> Gents,
>
> I need your valuable advice on following.
>
>
>
> We have some joints in for Flare package ,
>
>
>
> Can we use ER316L filler wire to weld
>
> 1- butt welded joints A312 TP 321
>
> 2- Butt welded Joints A403 WP 321
>
>
>
> Separatly ,
>
>
>
> We have supporting PQR USING ER316L welded material A240 316L , can
> this PQR suppot welding
>
> 1- butt welded joints A312 TP 321
>
> 2- Butt welded Joints A403 WP 321
>
>
>
> Waitting your reply ASAP
>
>
>
> Thanks
>
> Mohamed
>
>
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@googlegroups.com
> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
>

--
Ramin Kondori
* QC/Welding Engineer *
* IWE AT 0070*

*با تشكر*

* *

*رامين كندري*

واحد كنترل و تضمين كيفيت كارگاه ال ان جي كنگان

شركت نارديس انرژي

تلفن: 07727462189 داخلي 172 و171

فكس: 07727462179

همراه: 09132150320

آدرس: كنگان - سايت LNG - دفتر شركت نارديس

صندوق پستي 375 (اداره پست شهرستان كنگان)

*Regards*

*Ramin Kondori*

QA/QC Manager

IRAN-LNG Preoject

NARDIS ENERGY CO.

* *

*Tel.: +98-772-7462189 (Int.171, 172)*

*Fax: +98-772-7462179*

*Cell: +98-913-215-0320*

* Add.(Head office): No.27, 6th St., Seyed Jamalledin-e-Asad Abadi Ave.,
Tehran, Iran, 1431784891*
*Add.(Site): NARDIS Office, IRAN-LNG Plant, Kangan-Iran P.O.Box 375(Kangan
Post Office) *

Re: [MW:13599] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-02-02T12:59:00.000+05:30

Yes you can. Because deletion of Backing is a Non Essential variable for WPS and since welder is qualified without backing he can weld with backing also. Make sure that the WPS is not affecting the essential variables of the qualified welder.

Regards

Prabhakar. S

On Tue, Jan 31, 2012 at 8:07 PM, Aly <mhaskar.aly@gmail.com> wrote:

Dear experts,

Could you please clarify following;

If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

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For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Re: [MW:13598] use ER316L to weld A312 TP 321

2012-02-02T12:55:00.000+05:30

No, you need to use E/ER 347 to obtain optimal properties and good weld joint.

If Impact test is not applicable, then you can use the 316L PQR and prepare a WPS with E347 as the electrode.

Thanks & Regards J.Gerald Jayakumar 0091-9344954677

From: Mohamed Elsayed ( BTG) <MElsayed@ccc.ae>
To: materials-welding@googlegroups.com
Sent: Thursday, February 2, 2012 11:09 AM
Subject: [MW:13597] use ER316L to weld A312 TP 321

Gents,

I need your valuable advice on following.

We have some joints in for Flare package ,

Can we use ER316L filler wire to weld

1- butt welded joints A312 TP 321

2- Butt welded Joints A403 WP 321

Separatly ,

We have supporting PQR USING ER316L welded material A240 316L , can this PQR suppot welding

1- butt welded joints A312 TP 321

2- Butt welded Joints A403 WP 321

Waitting your reply ASAP

Thanks

Mohamed

[MW:13597] use ER316L to weld A312 TP 321

2012-02-02T11:09:00.000+05:30

Gents,

I need your valuable advice on following.

We have some joints in for Flare package ,

Can we use ER316L filler wire to weld

1- butt welded joints A312 TP 321

2- Butt welded Joints A403 WP 321

Separatly ,

We have supporting PQR USING ER316L welded material A240 316L , can this PQR suppot welding

1- butt welded joints A312 TP 321

2- Butt welded Joints A403 WP 321

Waitting your reply ASAP

Thanks

Mohamed

Re: [MW:13595] CR 40 Material

2012-02-01T16:58:00.000+05:30

Fyl
Magalhães Júlio

Welding and Inspection Around the world

2012/2/1 Mrityunjay Kumar / ZS Saudi PEB QA/QC <Mrityunjaykumar@zamilsteel.com>

Dear All,

Can anybody advice "what is CR40 material & its properties"

Best Regards,

M.K.Choudhary

P.O. Box 877, Dammam 31421 KSA

Phone : (+9663) 8471840 X 555

Fax : (+9663) 8471291

www.zamilsteel.com

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and intended solely for the use of the addressee(s) named herein. If you
are not the intended recipient or addressee, you should not use, disseminate,
distribute, copy or alter this email. Any views or opinions presented in this
email are solely those of the author and might not represent those of "Zamil
Industrial" and or its units.

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are present in this email, the company cannot accept responsibility for any
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

[MW:13594] CR 40 Material

2012-02-01T16:28:00.000+05:30

Dear All,

Can anybody advice “what is CR40 material & its properties”

Best Regards,

M.K.Choudhary

P.O. Box 877, Dammam 31421 KSA

Phone : (+9663) 8471840 X 555

Fax : (+9663) 8471291

www.zamilsteel.com

Re: [MW:13593] Pipe damaged during fabrication with B31.3 reference.

2012-02-01T15:34:00.000+05:30

Hi,

Please find the attached file of extraction from B31.3- K323.1.6. Code allows to repair the defects in material as specified in K323.1.6

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

German-Thai Boiler Engineering Cooperation Limited.

Rayong Factory ;

379 Moo.6 Soi 8, Tambol Pananikom,

Nikompattana, Rayong 21180 THAILAND

Tel : +66 38 897 035-9 Ext. 137

Fax : +66 38 897 034

Hand Phone: 0066 892512282

From: Karthik <karthik6684@yahoo.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Wednesday, February 1, 2012 10:51 AM
Subject: Re: [MW:13590] Pipe damaged during fabrication

Hi,

According to UG78,It can be repaired with the qualified and suitable WPS/Welder.Please find below the extraction of UG78.

UG-78 REPAIR OF DEFECTS IN MATERIALS

Defects in material may be repaired provided acceptance by the Inspector is first obtained for the method and extentof repairs. Defective material that cannot be satisfactorily repaired shall be rejected.

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

German-Thai Boiler Engineering Cooperation Limited.

Rayong Factory ;

379 Moo.6 Soi 8, Tambol Pananikom,

Nikompattana, Rayong 21180 THAILAND

Tel : +66 38 897 035-9 Ext. 137

Fax : +66 38 897 034

Hand Phone: 0066 892512282

From: jesti fer <jesti_fer@yahoo.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Monday, January 30, 2012 9:22 PM
Subject: [MW:13583] Pipe damaged during fabrication

Dear Experts,

I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,

is there any possibility to build up (Buttering) the base metals. Where can I will get the reference

jestifer

Re: [MW:13592] Pipe damaged during fabrication

2012-02-01T14:38:00.000+05:30

If the Damage is local, few spots then it could be repaired. If the damage area is more then you cannot repair the pipe as by build-up of entire area the pipe gets deformed.

Thanks & Regards J.Gerald Jayakumar 0091-9344954677

From: Suresh <bobsuresh24@gmail.com>
To: materials-welding@googlegroups.com
Sent: Tuesday, January 31, 2012 1:39 PM
Subject: Re: [MW:13584] Pipe damaged during fabrication

You need to make commonly weld build up procedure ad submit to Client for Approval ...Once Client accept the the procedure ...you may proceed for further repair ,It is very important thing is you need to make sure that after the repair base metal completely free from defects by using NDT Methods .

Regards

Suresh

On Mon, Jan 30, 2012 at 7:52 PM, jesti fer <jesti_fer@yahoo.com> wrote:

Dear Experts,

I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,

is there any possibility to build up (Buttering) the base metals. Where can I will get the reference

jestifer
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Thanks & Best Regards,

Suresh

Mobile No: 974 - 5 5 4 3 1 7 8 8 / 7 7 1 3 4 5 9 0 . ( Qatar )

91 - 92 92 905 905 ( India )

[MW:13591] Regarding PMI for UNS 31254 materials weld

2012-02-01T12:59:00.000+05:30

Dear Experts,

Hope you are doing well.

Please find attached PMI report of Super Austenitic Stainless Steel (UNS 31254) welding which used Er NiCrMo-3 filler wire.

Then inspection review of Positive Material Identification (PMI) of UNS 31254 materials through NITON Machine, i verified on weld metal using filler Er NiCrMo-3/UNS N06625 that showing UNS N07725 grade and its element contents also as per ASME Sec II, Part C.

Please advise.

We are QC persons has follow as per Codes & Standards for acceptance, but some case our supervisor/Team lead says overtake the Codes & Standards .What we have to do & where we have to complaint ?

Thank you & Best Regards,

S. Dinesh Ravi Shankar.
Mechanical Inspector,
Saudi Aramco Project Inspection Division (SAPID),
Manifa Core Hydrocarbon Facilities Project.

Kingdom of Saudi Arabia.,

Mobile : +966 562944695,
Tel : +966 3 379 2018.

Re: [MW:13590] Pipe damaged during fabrication

2012-02-01T09:21:00.000+05:30

Hi,

According to UG78,It can be repaired with the qualified and suitable WPS/Welder.Please find below the extraction of UG78.

UG-78 REPAIR OF DEFECTS IN MATERIALS

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

German-Thai Boiler Engineering Cooperation Limited.

Rayong Factory ;

379 Moo.6 Soi 8, Tambol Pananikom,

Nikompattana, Rayong 21180 THAILAND

Tel : +66 38 897 035-9 Ext. 137

Fax : +66 38 897 034

Hand Phone: 0066 892512282

Dear Experts,

I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,

is there any possibility to build up (Buttering) the base metals. Where can I will get the reference

jestifer

[MW:13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

2012-01-31T22:37:00.000+05:30

Dear experts,

Could you please clarify following;

If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.

Thanks in advance

Ali Mhaskar

Re: [MW:13589] Decrease in bevel angle - Essentail variable as per Shell DEP

2012-01-31T22:36:00.000+05:30

width & depth ratio is applicable for each pass (or welds completed with one welding run). There are narrow gap welding techniques (I am dealing with a pipeline where the thickness is 20mm and the bevel angle is 10 degrees.

I want to add another item to what Mr. J.Gerald Jayakumar mentioned:
Higher bevel angel helps the gas and slag to get out of molten weld metal. This along with lack of sidewall fusion are defects associated with welded joints with small bevel angel. This becomes critical in welding metals with low melt point such as Aluminum where you have to use 90 degrees joint configuration (instead of conventional 60-70 degrees).

Ramin Kondori

QC/Welding Engineer

IWE AT 0070

On Wed, Jan 25, 2012 at 6:29 PM, james gerald <gerry_tup@yahoo.com> wrote:

Welding Bevel angle is Provided for below reasons,

1. ACCESSIBILITY for the torch and electrode from the Root to the Cap.

2. DECREASE the Heat Conductivity along the bevel edges, more the bevel angle lesser the Heat conductivity
3. PROPER FUSION along the bevel edges, narrow the bevel will result in improper fusion(lack of side wall fusion)

4. BETTER FLOAWABILITY of the Liquid metal.

From the above it is clear that for some special materials like DSS, decrease in weld bevel will result in more conductivity and increased Heat input along the bevel edges and HAZ, may be one of the reason for its restriction.

Thanks & Regards J.Gerald Jayakumar 0091-9344954677

From: N VENKATESWARA PRASAD <weldengr.velosi@gmail.com>
To: materials-welding <materials-welding@googlegroups.com>
Sent: Wednesday, January 25, 2012 10:06 AM
Subject: [MW:13564] Decrease in bevel angle - Essentail variable as per Shell DEP

Dear All,

As per Shell DEP 30.10.60.18, the decrease in angle is essentail
variable. What is concept behind it? Is is applicable for Compound/
composite angle joint design also. As per this joint design up to 19
mm the bevel will be 37.5 degrees, later it will be only 10 degres.

My concept is the anlge is only for accessability and in case of DSS,
Nickel alloys higher anlge for better wetting. It should not
applicable for carbon steels.
Please debate on this.

The Clause as per DEP as given below:

11.1 Add new clause 11.1.4 It is the Manufacturer's responsibility to
ensure that
welding operations are carried out in accordance with the
parameters as specified on the qualified WPS. Unless
otherwise specified by local regulations, welding procedures
shall be qualified in accordance with ISO 15607 and/or
ASME IX. Irrespective of the design code, welding procedure
qualifications shall be re-qualified when any of the following
conditions occur:
• Joints
- A change from double sided to single sided welding, or
vise versa (delete) but not the converse;
- A decrease in welding groove angle of more than 10
degrees.
• Consumables
- Any change of consumable classification;
- Any change in consumable brand name when corrosion
testing or impact testing is required;
- Any change in size of more then 1 mm of consumable in
the root run of single sided welds.
• Welding position
Change in welding direction (vertical up to vertical down
welding or vice versa).

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.