Materials & Welding: November 2012

Friday, November 30, 2012

Re: [MW:16094] PWHT for blind flange

PWHT for blind flange to nozzle neck (Category-D joint) is mandatory, also ASME name plate shall be stamped as PHT.

Regards

Sudhir Kumar

On Thu, Nov 29, 2012 at 10:28 PM, Vicky Patil <patilvicky4@gmail.com> wrote:

Dear expert,

Vessel PWHT Not required, But Main Nozzle having blind flange & its thickness above 40 mm also one nozzle attached with set through joint welded on Center Blind Flange.

My question is after welding we done SR for Blind Flange or Not?

Regards,

Chetan

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[MW:16095] Stainless Welding...

Dear all,

thanks for the support and clarifications for the past years with this group.

1.what are all the Quality check points while welding with SS?

2.how to check the discoloration while welding?

3. purge time calculation?

4. if thickness of the base material is less than 3mm what are all aspects shall be followed to maintain a good welding?

5. what is the distance calculation for purging?

6.how to determine the electrical parameter and shielding gas parameters,preheating details for GTAW while preparing proposed WPS for SS and NON FERROUS MATERIALS?

(i checked with the AWS Sec II part c but i could not get it.)

eagerly waiting for reply.

Regards,

J.C.Andrews

QA/QC Engineer

Doha-Qatar.

[MW:16096] Regarding clarification in S Stamp and PP Stamp.

Dear All,

The Query is, how to define S & PP stamp.

I hope S refer to code ASME Sec.I and PP refers to code ASME Sec B31.1.

what is external piping and proper?.

For example, if any client says to do external piping and stamp as S means how to justify whether it is correct or not. please clarify.

if S stamp means how to start it?

if PP means how to start?

Regards,

J.C.Andrews

QA/QC Engineer

Doha-Qatar.

RE: [MW:16093] Alternative welding consumable for E7018-B2L

The E-8018-B2L IS DELETED IN 1981 AND REPLACED BY E-7018-B2L, AND I FOUND IT IN THE MARKET

Date: Fri, 30 Nov 2012 14:06:09 +0800
From: pb.hegde@yahoo.com
Subject: Re: [MW:16084] Alternative welding consumable for E7018-B2L
To: materials-welding@googlegroups.com

You can use E8018B2L

--- On Thu, 29/11/12, sudalai kannan <sudalaims@gmail.com> wrote:

From: sudalai kannan <sudalaims@gmail.com>
Subject: [MW:16076] Alternative welding consumable for E7018-B2L
To: materials-welding@googlegroups.com
Date: Thursday, 29 November, 2012, 7:08 PM

Dear Experts,

I have repair works on 100mm thick drum, Client refered to us use E7018-B2L, but I could not found this consumable in the market. Can u guide me which electrode can use instead off E7018-B2L and what is the different between E7018-1 & E7018-B2L.

Thanks to all.

Regards,
M.Sudalai.
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Re: [MW:16092] Consumable for SA 387 GR-12.CL2 materials

Dear Sir,

It seems the weld defect is due to i) Welder skill if it is ok ii) Flux coating of the Electrodes Why not change the brand and try As such these typeE8018B2L of elctrodes are being used by many fabricators w/o problems

Please check Current, Voltage and bead placement and also Joint configuration

Regards

Hegde

--- On Fri, 30/11/12, sudalai kannan <sudalaims@gmail.com> wrote:

From: sudalai kannan <sudalaims@gmail.com>
Subject: Re: [MW:16091] Consumable for SA 387 GR-12.CL2 materials
To: materials-welding@googlegroups.com
Date: Friday, 30 November, 2012, 3:31 PM

Dear sir,

The base material is SA 387 GR12.CL2 it's conformed, we tried with E8018-B2 (ESAB), but the Radiographic reports shown on everywhere is Incomplete fusion, We follow proper Preheat, Interpass & we used the good welder for the joint.

Then only client informed us to use E7018-B2L electrode.

Please give me feed back the above issue.

Thanks to you.

Regards,

M.Sudalai.

On 30 November 2012 08:56, HAREESH K V <hareesh13h@gmail.com> wrote:

Dear Sir,

You can use E7018-B2L of E8018-B2L. Not got a good result? What happened, please explain.

Regards,

Hareesh K V

+8306703707

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Re: [MW:16091] Consumable for SA 387 GR-12.CL2 materials

Dear sir,

The base material is SA 387 GR12.CL2 it's conformed, we tried with E8018-B2 (ESAB), but the Radiographic reports shown on everywhere is Incomplete fusion, We follow proper Preheat, Interpass & we used the good welder for the joint.

Then only client informed us to use E7018-B2L electrode.

Please give me feed back the above issue.

Thanks to you.

Regards,

M.Sudalai.

On 30 November 2012 08:56, HAREESH K V <hareesh13h@gmail.com> wrote:

Dear Sir,

You can use E7018-B2L of E8018-B2L. Not got a good result? What happened, please explain.

Regards,

Hareesh K V
+8306703707

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[MW:16090] PAUT for Vessel in Lethal Service

Dear Member,

Is it alllowed to use ultrasonic examination(PAUT) in lieu of Radiography for vessel intented to be used in lethal service?

Re: [MW:16081] standard Elbow

Long Radius (1.5D), Standard

G.S.Arora

From: chinna durai <iarud87@gmail.com>
To: materials-welding@googlegroups.com
Sent: Thursday, 29 November 2012 7:08 PM
Subject: [MW:16077] standard Elbow

Dear Experts,

                   usually we are using 3 types of Elbow in construction field,

Like as,

              1. Long Radius (1.5D),
              2. Short Radius (1D)
3. 3D Elbow,

here My doubt is which one called Standard type Elbow?

can any one Please clarify this one....

Thanks & Regards,
Durai.P

[MW:16081] TOFD & Phased Array UT which is Better

Dear all,

What is different between TOFD& PAUT?

which one is better?

regrds,

mohammed.

Re: [MW:16083] PWHT for blind flange

Yes PWHT is required for Blind Flange Only

On Thu, Nov 29, 2012 at 10:28 PM, Vicky Patil <patilvicky4@gmail.com> wrote:

Dear expert,

Vessel PWHT Not required, But Main Nozzle having blind flange & its thickness above 40 mm also one nozzle attached with set through joint welded on Center Blind Flange.

My question is after welding we done SR for Blind Flange or Not?

Regards,
Chetan

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Re: [MW:16084] Consumable for SA 387 GR-12.CL2 materials

Hi!

NOT GOOD RESULT MEANS WHAT???????

Please let us know the exact problem you facer

For SA387 Gr12 C2 best suitable consumable is E8018B2 type Use g

ood brand Bholer,Kobelco,) (eg if you have problem with its mechanical properties which are strignent like Impact at minus 29C with higher value Some time better to use E8015 or 8016 type more of basic flux

Hegde P.B.

--- On Thu, 29/11/12, sudalai kannan <sudalaims@gmail.com> wrote:

From: sudalai kannan <sudalaims@gmail.com>
Subject: [MW:16075] Consumable for SA 387 GR-12.CL2 materials
To: materials-welding@googlegroups.com
Date: Thursday, 29 November, 2012, 7:31 PM

Dear all,

I have a repair work on SA 387 GR-12.CL2 (75mm thick) materials, I tried with E8018-B2,but I didn't get good result. so can u give me suggestion which consumable is give good fusion and penetration for the above materials.

Thanks to all,

Regards,
M.Sudalai
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Re: [MW:16084] Alternative welding consumable for E7018-B2L

You can use E8018B2L

--- On Thu, 29/11/12, sudalai kannan <sudalaims@gmail.com> wrote:

From: sudalai kannan <sudalaims@gmail.com>
Subject: [MW:16076] Alternative welding consumable for E7018-B2L
To: materials-welding@googlegroups.com
Date: Thursday, 29 November, 2012, 7:08 PM

Dear Experts,

I have repair works on 100mm thick drum, Client refered to us use E7018-B2L, but I could not found this consumable in the market. Can u guide me which electrode can use instead off E7018-B2L and what is the different between E7018-1 & E7018-B2L.

Thanks to all.

Regards,
M.Sudalai.
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Re: [MW:16086] EN 8 EN19 EN24 welding

Hi,

You can Use E7018 for EN8 and E9018 for EN19 and 24.

Please find herewith the attached file might be useful to you.

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: "pankaj.kolhe@wipro.com" <pankaj.kolhe@wipro.com>
To: materials-welding@googlegroups.com
Sent: Thursday, November 29, 2012 2:30 PM
Subject: [MW:16071] EN 8 EN19 EN24 welding

Dear all,

Can anybody tell me regarding the consumable to be used for EN-8,EN19,EN24 to SA 516 Gr 70 and SA 106 Gr 70 and SA335 welding and EN8,EN24,En19 to self welding.

Regards

Pankaj Kolhe

QC Dept.

Wipro Limited (Wipro Water)

Serene Properties Private Limited, SEZ, Plot No. 3, Building No. 7, 6th Floor, TTC Industrial Area, Thane-Belapur Road, Airoli, Navi Mumbai – 400708, Maharashtra, India. Tel- +91 22 39302135 E-mail- pankaj.kolhe@wipro.com

Re: [MW:16086] Alternative welding consumable for E7018-B2L

dear expart,

7018-1 electrodes are used for only p1 material where high impact
value required, but ur cliant says that use 7018-b2l then it means
that ur base matel is low alloy steel,just tell us material
specification and also if u search in asme sec. 2 c you will find
electrode . B2 stands for p4 material.

Regards,
rakesh oza

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Re: [MW:16088] Consumable for SA 387 GR-12.CL2 materials

Dear Sir,

You can use E7018-B2L of E8018-B2L. Not got a good result? What happened, please explain.

Regards,

Hareesh K V

+8306703707

Re: [MW:16089] Alternative welding consumable for E7018-B2L

Dear Sir,

What is the specification of the material that is to be welded? Also D&H, ADOR and ESAB is having the electrode E7018-B2L. This is a commonly available brand, surprise to hear that you are not getting it.

Also please refer ASME Sec II C (Check it based on the SFA number you required) for understanding the difference.

Regards,

Hareesh K V

+91-8306703707

On Thu, Nov 29, 2012 at 7:08 PM, sudalai kannan <sudalaims@gmail.com> wrote:

Dear Experts,

I have repair works on 100mm thick drum, Client refered to us use E7018-B2L, but I could not found this consumable in the market. Can u guide me which electrode can use instead off E7018-B2L and what is the different between E7018-1 & E7018-B2L.

Thanks to all.

Regards,

M.Sudalai.

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[MW:16080] SA/A 420 WPL6 fittings for use in PWHT service piping as per B31.3 and for vessels in ASME Sec VIII.

Reference para 7.4 from SA 420 WPL6 states "When the fittings are to be post-weld heat treated after being welded by the purchaser and when so specified in the order, the test specimens shall be subjected to the same post-weld heat treatment. The purchaser shall use the post weld heat treatment shown in Table 2, unless otherwise specified in the order."

Question 1) Since ASME Sec VIII Div 1 UCS 85(e) does not call for simulation heat treatment for P1 material for the standard component, however as per the clause 7.4 of SA 420 WPL 6 Is it necessary (In order to meet the ASME requirement) for the vessel manufacturer to inform the fitting supplier that the vessel is going to be used in a vessel and that the vessel is going to be post weld heat treated and the fitting need simulation heat treatment?

Question 2) Similarly What in case B31.3 is it mandatory to inform fitting manufacturer for simulated PWHT of test coupons?

Re: [MW:16073] What are the criteria to select Stub in or Stub on for Branch connection in Piping?

Selection of joint design is based on the stress at the opening (design calculations) by Design Engineer.

Regards

Sudhir kumar

On Thu, Nov 29, 2012 at 12:47 PM, PK M <pkmqaqc@gmail.com> wrote:

Dear Experts,

What are the criteria to select Stub in or Stub on for Branch connection in Piping?

(Or)

How to choose Stub in or Stub on for Branch connection in Piping?

Thanks,

Pkm..

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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:16074] PWHT for blind flange

Dear expert,

Vessel PWHT Not required, But Main Nozzle having blind flange & its thickness above 40 mm also one nozzle attached with set through joint welded on Center Blind Flange.

My question is after welding we done SR for Blind Flange or Not?

Regards,

Chetan

Thursday, November 29, 2012

[MW:16075] Consumable for SA 387 GR-12.CL2 materials

Dear all,

I have a repair work on SA 387 GR-12.CL2 (75mm thick) materials, I tried with E8018-B2,but I didn't get good result. so can u give me suggestion which consumable is give good fusion and penetration for the above materials.

Thanks to all,

Regards,

M.Sudalai

[MW:16077] standard Elbow

[MW:16076] Alternative welding consumable for E7018-B2L

Dear Experts,

I have repair works on 100mm thick drum, Client refered to us use E7018-B2L, but I could not found this consumable in the market. Can u guide me which electrode can use instead off E7018-B2L and what is the different between E7018-1 & E7018-B2L.

Thanks to all.

Regards,

M.Sudalai.

[MW:16078] Copper Back up Strip Chemical Compotision

Dear Experts,

I want the detail for the Copper Back up strip Chemical Compotision,
Then we are using Base Matel is 690 Ql and Filler Mate is ER110. If i
'll use the Copper Back up Strip means any Welding Defects arise or
not. Please give the detail with any Standards or DOCs.

Thanks and Best Regards,
G.Nalla

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Re: [MW:16079] What are the criteria to select Stub in or Stub on for Branch connection in Piping?

the branch connection for the header with re-pad should be stub-out. The header that does not have re-pad should be stub-in.

Regards

samir

On Thu, Nov 29, 2012 at 1:47 PM, PK M <pkmqaqc@gmail.com> wrote:

Dear Experts,

What are the criteria to select Stub in or Stub on for Branch connection in Piping?

(Or)

How to choose Stub in or Stub on for Branch connection in Piping?

Thanks,
Pkm..

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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.

Samir Mehta

Engineer - Welding & Projects

JPIOS

Abu Dhabi - UAE

+971 55 94 25 327

Re: [MW:16068] Weld buttering

WPS qualified on groove welds can be used for weld build up as permitted by QW-202.3 of ASME SEC IX.

Existing WPS for groove welds can be revised to include weld metal build up.

Pls. check for insert plate option instead of weld build up in consultation with Design Engineer & Client.

Regards

Sudhir Kumar

On Wed, Nov 28, 2012 at 5:15 PM, welding <samirmehta.jnd@gmail.com> wrote:

Dear All,

Pls advice for following,

ASME b31.3 PIPING

1. by mistake my fabricator has made 4" hole in mother pipe (for branch connection) instead of 3", to overcome this issue he had weld (butter) the area by tig welding to meet actual requirement, somehow client came to know the issue and reject the spool, due to non availability of buttering procedure. we already have PQR for groove welding by tig process for same material.

pl advice what i can do in this regards, or to qualify procedure PIPE SIZE 54" THK 19 MM, also provide ref. std copy of procedure

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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:16069] What are the criteria to select Stub in or Stub on for Branch connection in Piping?

Dear Experts,

What are the criteria to select Stub in or Stub on for Branch connection in Piping?

(Or)

How to choose Stub in or Stub on for Branch connection in Piping?

Thanks,

Pkm..

[MW:16070] National Fire Protection Association NFPA standards

Dear Experts ,

Have one issue to confirm ;

NFPA standards mention about welding & installation or give some refernce to ASME code ... ?

Regards.

--

زكرياء غراب
GHRAB Zakaria

[MW:16071] EN 8 EN19 EN24 welding

Dear all,

Can anybody tell me regarding the consumable to be used for EN-8,EN19,EN24 to SA 516 Gr 70 and SA 106 Gr 70 and SA335 welding and EN8,EN24,En19 to self welding.

Regards

Pankaj Kolhe

QC Dept.

Wipro Limited (Wipro Water)

Re: [MW:16072] bgas study material & questionaire

Dear Dinesh,

I have attached BGas-Painting-Multiple-Choice questions with answer.I hope all questions and answers are help you in the BGas-examination.

Regards

Bijaya Gouda

From: Dinesh Somwanshi <som.din@gmail.com>
Sent: Wed, 28 Nov 2012 17:24:35
To: materials-welding@googlegroups.com
Subject: [MW:16054] bgas study material & questionaire

dear sirs,

I need an painting bgas study material for ongoing exams.

I want your esteem cooperation on the same.

Thanks & regards

dinesh

Catch India as it happens with the Rediff News App. To download it for FREE, click here

Wednesday, November 28, 2012

[MW:16061] Butt Lengths of Electrodes

Dear Sir,

Iam member of the materials group.

Kindly let know the butt lengths of various sizes of electrodes and basis for the calculation of butt lengths of various sizes of electrodes. e.g 2.5 ,3.15,4.00,5.00 & 6.00 mm dia electrodes.

Kindly reply.

Regards,

Ravi.

--- On Tue, 27/11/12, pgoswami <pgoswami@quickclic.net> wrote:

From: pgoswami <pgoswami@quickclic.net>
Subject: [MW:16046] RE: welding with EL8
To: "'kiran kumar'" <chvvn.kirankumar@gmail.com>
Cc: materials-welding@googlegroups.com
Date: Tuesday, 27 November, 2012, 9:21 AM

Hi Kiran,

For SAW the wire flux classification is important than filler metal alone. Sec-IX,QW-404.9 addresses this issue.

A change from EH14 (1.8% Mn) to EL8( less than 1% Mn) would cause significant reduction in weld metal mechanical properties.

Hence this change may not be allowed unless a new PQR is qualified.

Thanks.

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist

Ontario , Canada .

Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net

From: kiran kumar [mailto:chvvn.kirankumar@gmail.com]
Sent: Monday, November 26, 2012 3:54 AM
To: pgoswami@sympatico.ca; pgoswami@quickclic.net
Cc: materials-welding@googlegroups.com
Subject: welding with EL8

Dear Sir

Can we weld with Filler wire EL8 with supporting PQR EH 14 Filler wire (having same F no:6)

Material IS 2062

Construction code -BPVC Section IX

Process-SAW Process.

Thanking you

CH.V.V.N.KIRANKUMAR

+91 7898905072

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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:16062] Weld buttering

Dear All,

Pls advice for following,

ASME b31.3 PIPING

1. by mistake my fabricator has made 4" hole in mother pipe (for branch connection) instead of 3", to overcome this issue he had weld (butter) the area by tig welding to meet actual requirement, somehow client came to know the issue and reject the spool, due to non availability of buttering procedure. we already have PQR for groove welding by tig process for same material.

pl advice what i can do in this regards, or to qualify procedure PIPE SIZE 54" THK 19 MM, also provide ref. std copy of procedure

[MW:16063] Re: How to renew CSWIP 3.1 certificate

send a quiry to twi online it self

On Monday, July 23, 2012 12:38:15 AM UTC+5:30, mhaskar aly wrote:

Dear Experts,

Kindly help us to renew my CSWIP 3.1 certificate; kindly provide the procedure etc

Thanks in advance

Ali

Re: [MW:16064] Regarding Welding of some materials

Mr. Cyril,

The particulars as required by you are enclosed and hope it meets ur needs,

Sridhar.

From: James cyrilandrew <jcyrilandrew@gmail.com>
To: Material welding groups <materials-welding@googlegroups.com>
Sent: Wednesday, 28 November 2012 12:25 AM
Subject: [MW:16057] Regarding Welding of some materials

Dear All,

After a long time i am here with some clarifications....... I hope i will get a detailed reply....... the doubt is,

1. Material Number- 1.4876 and UNS N08800.

2. Material Number- 1.4571 (316Ti)..... and its UNS S31625

for the above materials what is the electrode specification, class and whether heat treatment is there or not and how abt shielding gas....

pleaseclarify... awaiting for reply..... thank you.

Regards,

Cyril

Doha-Qatar

Fw: [MW:16065] H-925 HT for tool steel

Mr. HHS,

I am enclosing the details on H925 & H13 literature for ur records.

Pl. go th' the same and if u need any further info. let me know.

sridhar.

----------------------------------------------------------------------------------------------------------------------

----- Forwarded Message -----
From: Hrushikesh Sangamnerkar <hrushi612@gmail.com>
To: materials-welding@googlegroups.com
Sent: Tuesday, 27 November 2012 6:53 PM
Subject: [MW:16058] H-925 HT for tool steel

Sir,

Kindly provide me the information about H-925 heat treatment of H13 Tool steel material.If you have any literature/document regarding this, please provide me.

Regards,

Hrushikesh H Sangamnerkar

Re: [MW:16066] Regarding Welding of some materials

Dear Cyril

my suggestion is given below

Regards

Hegde P.B.

Welding consultant

Pune

08805593046

--- On Wed, 28/11/12, James cyrilandrew <jcyrilandrew@gmail.com> wrote:

From: James cyrilandrew <jcyrilandrew@gmail.com>
Subject: [MW:16057] Regarding Welding of some materials
To: "Material welding groups" <materials-welding@googlegroups.com>
Date: Wednesday, 28 November, 2012, 12:25 AM

Dear All,
After a long time i am here with some clarifications....... I hope i will get a detailed reply....... the doubt is,

1. Material Number- 1.4876 and UNS N08800. This is Inconel 800series you can use ERNiCr3 ,ENiCrFe2 or NiCrFe3 welding consumables There is no need of any PWHT for Inconel to inconel weld joint but If it is welded with Inconel to CS/LAS The PWHT temp and cycle govenrs the CS/LAS PWHT requirement as per UCS 56 of ASME code

2. Material Number- 1.4571 (316Ti)..... and its UNS S31625 It is used for high temp application where Ti avoids the sensatization You can use 316L type consumables with controlled heat input and lowerside Interpass temp say 150C max Generally There is no need of PWHT as per code However some client spec ask for stablizing treatment at high temp say at 950C and cool in air (This is similar to 308H type requirement)

for the above materials what is the electrode specification, class and whether heat treatment is there or not and how abt shielding gas....

pleaseclarify... awaiting for reply..... thank you.

--

Regards,

Cyril

Doha-Qatar

--
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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:16067] Regarding Welding of some materials

Hi,

01. For UNS N08800 use AWS ENiCrFe-2

02. For S31625 use E318-15

Also please find herewith the attached files might be useful to you.

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: James cyrilandrew <jcyrilandrew@gmail.com>
To: Material welding groups <materials-welding@googlegroups.com>
Sent: Wednesday, November 28, 2012 1:55 AM
Subject: [MW:16057] Regarding Welding of some materials

Dear All,

After a long time i am here with some clarifications....... I hope i will get a detailed reply....... the doubt is,

1. Material Number- 1.4876 and UNS N08800.

2. Material Number- 1.4571 (316Ti)..... and its UNS S31625

for the above materials what is the electrode specification, class and whether heat treatment is there or not and how abt shielding gas....