Materials & Welding: July 2012

Tuesday, July 31, 2012

Re: [MW:14997] SS Electrode Eccentricity Tester

Mr. Ahmd.

It is a dual checking meter used for both MS & SS.

It is an Indian product and I will come back with details shortly.

sridhar.

From: Murtaza Ghauri <murtaza506@yahoo.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Saturday, 28 July 2012 11:46 AM
Subject: Re: [MW:14972] SS Electrode Eccentricity Tester

Dear Sir,

Tell me the company name and product name(if any) whose electrode eccentricity tester you are using for SS electrode.

the tester that we are using is only for electrodes containing MS core wire.

AHMAD

From: c sridhar <sridhar305@yahoo.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Friday, July 27, 2012 7:35 PM
Subject: Re: [MW:14969] SS Electrode Eccentricity Tester

Mr. Ahmad,

The electrode coating (eccentric) testing is ment for all types of electrodes

including SS also.

We have used the tester for all types of electrodes in the plant.

sridhar.

From: Ahmad Ghauri <murtaza506@yahoo.com>
To: materials-welding@googlegroups.com
Sent: Friday, 27 July 2012 4:01 PM
Subject: [MW:14968] SS Electrode Eccentricity Tester

Dear All

We have an eccentricity tester that determines the eccentricity of SMAW electrodes containing MS core wire.

Is there any tester that determines the eccentricity of SMAW electrodes containing SS core wire???

Regards,

AHMAD

[MW:14996] Re:Crack in the shell with thickness of 82.6 mm After PWHT

Dear Experts,

A Ring of diameter 4 m ( 82.6 mm thickness welded with 25 mm thickness) had crack to the length of 4 m on the welded area after PWHT.

After analyzing the reasons , while doing PWHT at the time cooling stage, temperature maintained was 86.7 degree instead of 80 degree Max..

Is this is the reason for the crack.

Experts please clarify the reason and solutions.Awaiting the response at the earliest.

Regards / Haja M.

Re: FW: Re: [MW:14995] Stress relieving of 410S

Dear Mr. Ahir Rao,

PWHT for 410S clad at 675 degC is ok. There will not be any drop in UTS of Gr70 material. Infact after cladding the elongation of base reduces and UTS goes up which will be nullified by heat treatment at 675 degC

regards

vanchinath

On Mon, Jul 30, 2012 at 5:24 PM, <kundan.ahirao@gmail.com> wrote:

Dear Sir,
Thanks for your reply.
Actually my issue is not related to welding of 410S.
What will be soaking temperature after explosion bonding i.e.cladding of SA 516 Gr 70+ SA 240 Tp 410S.

Thanks and Regards

-original message-
Subject: Re: [MW:14984] Stress relieving of 410S
From: Rejoy Thomas <rejoythomas90@gmail.com>
Date: 30-07-2012 1:17 pm

which electrode are u using for this purpose..i think it'z not
E309..if u r using E 410-XX electrode for welding, then heat to
730-760°C and hold for one hour before cooling it to ambient
temperature.. Refer SFA 5.4 Table 6..

On 7/28/12, kundan.ahirao@gmail.com <kundan.ahirao@gmail.com> wrote:
> Dear expert
> kindly advice and share your opinion
> we have cladding of SA516 gr 70 + SA 240 tp 410S.
> After explosion bonding manufacturer is giving SR cycle to clad plate at
> soaking temp 675 deg C.
> But at this temperature tensile strength of base metal will achieve or not.
> If not then what will be soaking temperature.
> Also as per our fabrication drg soaking temp given is 620 deg C.
> Thanks and regards
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
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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.
>

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Re: [MW:14994] Which Electrode/Filler wire we should use for 12Cr1MoV ?

Dear friend,

In 12Cr1MoV,the chromium content is only 0.9 to 1.2%. So we can use E8018-B2. In my 600MW chinese boiler all crown plates(Pr.parts support) are fabricated in 12Cr1MoV. Here we use only E8018 as per Chinese instruction.

Regards
Jubair

On Jul 31, 2012 9:58 AM, "Parveen Kumar Nakwal" <pknakwal@gmail.com> wrote:

Dear Experts,

In Thermal Power we have material of Strape plate is 15CrMo & we are using E8018B3,

Now New material 12Cr1MoV is coming for structure & piping work. Can we use ER 90SB3 + E9018 B3 ?which electrode & filler wire we should use as per standard.

If Not kindly suggest me Which Electore & filler wire should we use, as per the standards.

Waiting for Reply.

Regards.

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[MW:14993] Which Electrode/Filler wire we should use for 12Cr1MoV ?

Dear Experts,

In Thermal Power we have material of Strape plate is 15CrMo & we are using E8018B3,

Now New material 12Cr1MoV is coming for structure & piping work. Can we use ER 90SB3 + E9018 B3 ?which electrode & filler wire we should use as per standard.

If Not kindly suggest me Which Electore & filler wire should we use, as per the standards.

Waiting for Reply.

Regards.

Re: [MW:14992] A106 Gr B Pipe Lowest Temperature

Gnerally B31.3 exempts impact testing @ -29 °C for thickness upto 12.7mm (1/2")

if the thickness exceeds the limits specifed (i.e falls below the curve provided in B31.3) you may use it with imapct etsting, Since your contract specification limit for A106 Gr.B is upto -15 °C, you may carry out the CVN impact testing and produce the results to cleints satisaction.

On Tue, Jul 31, 2012 at 3:43 AM, Lassaad <lassaad.mokrani@gmail.com> wrote:

Dear Experts,
We faced a small problem with one of our client, regarding the lowest temperature that Could be stand by à A105 GrB. We told him that as per ASME B31.3 We can allow up to -29 deg C. Where, according to one of his piping spec they mention for thé same to only -15 deg C.
Having a à scenario in which thé température in thé concerned Line Could reach -15 deg C, thé client asked us to replace thé pipe or provide à Third Party certificate to support that up to this température of -15 deg C, there'll be on problem.
My questions are:
1-As per Asme, is there any susciptibility of the -29 deg in relation to pipe WT (3/4" limit)?
2-Could thé MTC cover that avoiding the TP?
3-What is our proposal to settle this issue

Many thanks

Envoyé de mon iPad

[MW:14991] A106 Gr B Pipe Lowest Temperature

Dear Experts,
We faced a small problem with one of our client, regarding the lowest temperature that Could be stand by à A105 GrB. We told him that as per ASME B31.3 We can allow up to -29 deg C. Where, according to one of his piping spec they mention for thé same to only -15 deg C.
Having a à scenario in which thé température in thé concerned Line Could reach -15 deg C, thé client asked us to replace thé pipe or provide à Third Party certificate to support that up to this température of -15 deg C, there'll be on problem.
My questions are:
1-As per Asme, is there any susciptibility of the -29 deg in relation to pipe WT (3/4" limit)?
2-Could thé MTC cover that avoiding the TP?
3-What is our proposal to settle this issue

Many thanks

Envoyé de mon iPad

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Monday, July 30, 2012

[MW:14990] 4145H welding

Dear Experts,

Can you please share your experience with welding of 4145H.

The problem is as follows:

Base metal UTS = 157ksi

Client spec advises = PWHT @ 560°C

Now, the tensile achieved was only 110ksi

Bend test failed

Macro specimen shows high amount of martensite in the cap side.

CVN @ room temperature = 40Joules

regards,

Harish.

FW: Re: [MW:14989] Stress relieving of 410S

Dear Sir,
Thanks for your reply.
Actually my issue is not related to welding of 410S.
What will be soaking temperature after explosion bonding i.e.cladding of SA 516 Gr 70+ SA 240 Tp 410S.

Thanks and Regards
-original message-
Subject: Re: [MW:14984] Stress relieving of 410S
From: Rejoy Thomas <rejoythomas90@gmail.com>
Date: 30-07-2012 1:17 pm

which electrode are u using for this purpose..i think it'z not
E309..if u r using E 410-XX electrode for welding, then heat to
730-760°C and hold for one hour before cooling it to ambient
temperature.. Refer SFA 5.4 Table 6..

On 7/28/12, kundan.ahirao@gmail.com <kundan.ahirao@gmail.com> wrote:
> Dear expert
> kindly advice and share your opinion
> we have cladding of SA516 gr 70 + SA 240 tp 410S.
> After explosion bonding manufacturer is giving SR cycle to clad plate at
> soaking temp 675 deg C.
> But at this temperature tensile strength of base metal will achieve or not.
> If not then what will be soaking temperature.
> Also as per our fabrication drg soaking temp given is 620 deg C.
> Thanks and regards
>
> --
> 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
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> 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.
>

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Re: [MW:14988] RE: 14919] Stress relieving Rejected for 5 min less soaking time.

Mr. Mhmd,

As a practical thinking, the job can be en marked and a separate report could be made /filed with the details for future reference since the deviation is a minor flaw.

Normally, we accept certain defects/discontinuities (except cracks) with minor deviations and just beyond acceptable limits as mentioned in the code, as repair welding at times has induced more defects due to positional welding or other conditions.

Code is a guidance and Some times we have to take decisions based up on fast experience, application, environmental conditions etc.

If they still insist up on, you have no options but, to proceed further with one more SR in continuity to earlier cycle.

sridhar.

From: Sachin Tagare <sachin.tagare@gmail.com>
To: materials-welding@googlegroups.com
Sent: Sunday, 29 July 2012 7:53 AM
Subject: Re: [MW:14978] RE: 14919] Stress relieving Rejected for 5 min less soaking time.

Dear Mr.Kapadia,

Thank you for such a reply which I would like to appreciate highly.

Not only concerning with this case in particular but also in general we are reluctant to think beyond the codes, but such approach to any problem will certainly help us improve our mindset which is stubborn at times, and also it will create possibilities/ opportunities for improvements in the reference codes and standards we follow.

"If life throws you a lemon - make lemonade"- Joan Collins

Thanks & Regards

Sachin Tagare

On Fri, Jul 27, 2012 at 1:27 PM, prashant pansare <prashant.pan17@gmail.com> wrote:

Dear Sir,

This is what we experience (thinking beyond the CODE) form materials
-welding group experts.

Thanks,

Prashant Pansare
(IRS-Mumbai)

On 7/24/12, Chetan Kapadia <cbkapadia@yahoo.co.in> wrote:
> Dear All,
>
> I have been a CONSULTANT FOR such problem & my personal opinion is expressed
> as follow.
>
>
> I fully agree with views expressed so far.
>
> But bag to differ that "Code is a law, with engineering judgments.
> Hence the inspector has the rights to declare that the original HT was
> inadequate."
>
> Inspectors & total industry must resist the"REJECTION". We as intellectual &
> having seniority must become practical.
>
> How the code will revise???.
>
>
> ANS.: One is experiments (Pure research) & second is such chances that gives
> opportunity to experiment !!!
> _______________________________________________________________________________________________
>
> My understanding is that it is P1 material.
>
>
> In that case every pass normalizes the immediate bottom pass.
>
> Hence code requirement for P1 FOR MANDATORY SR is 32 mm & above thickness.
>
> SOLUTION:
>
> In any case
>
>
> 0. After SR=PWHT no PTC testing is required as per code--Unless for low
> temp. vessels. That means code is assuming that if every care is taken

> as per code then thereis not much of a change in mechanical properties of
> WELD & HAZ. Hence this minor time difference can not resultin tremendous

> non agreeable metallurgical & OR mechanical OR process guarantee

> type defect. Depending up onfinal use the best decision can be arrived at.

>
>
> 1.if sufficient length is available ON PRODUCT then carry out all DT.
>
> 2.if sufficient length is not available on product carry out HARDNESS survey
> on PP, HAZ & WELD.
> THIS WILL GIVE FAIR IDEA OF TT & WELD TENSILE VALUES. If + then proceed
> for all test on PTC.
>
> 3. Prepare additional Test piece & let it undergo simulated SR with less by
> 5 minutes. Test for all test required by
>
> product designed use.Prove with guts.Nothing goes wrong.
>
> Even if all above proves wrong accept the defeat with guts on
> experimenting.
>
> Please do it even for your self satisfaction. Who knows It might become a
> code case.
>
> How can we have code without negative tolerance on time: Whatsoever--???.
>
> All this is without any prejudice to the contribution by other experts in
> the group. Further comments welcome for better understanding on the issue.
>
>
> Best Regards,
> C.B.KAPADIA
> Free-Lance Fabrication Technology & API Monogram Certification consultant
>
>
>
> ________________________________
> From: pgoswami <pgoswami@quickclic.net>
> To: materials-welding@googlegroups.com
> Sent: Tuesday, 24 July 2012 5:42 PM
> Subject: RE: [MW:14949] RE: 14919] Stress relieving Rejected for 5 min less
> soaking time.
>
>
> Harish/Mohd,
>
> I am not trying to act as moderator.
>
> Looking at the problem, a separate simulation may be as
> time consuming as the original HT. Code is a law, with engineering
> judgments.
> Hence the inspector has the rights to declare that the original HT was
> inadequate. The simplest solution what looks to me is to perform additional
> SR
> for 15-20 mins and satisfy code requirements.
>
> PWHT time is all cumulative , and there no restriction
> form ASME code.
>
> Thanks.
>
> PradipGoswami,P.Eng.IWE

> Welding
> & Metallurgical Specialist
> Ontario, Canada.

> Email-pgoswami@sympatico.ca,
> pgoswami@quickclic.net
>
>
>
> ________________________________
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] On Behalf Of Harish
> Kannepalli
> Sent: Monday, July 23, 2012 11:58 AM
> To: materials-welding@googlegroups.com
> Subject: Re: [MW:14942] RE: 14919]
> Stress relieving Rejected for 5 min less soaking time.
>
>
> You can propose the following to your client:
> Perform Simulation on separate
> coupon, check the mechanical & metallurgical properties. If they meet the
> code requirements, it may be acceptable. After all, code is made by humans
> for
> humans.
>
>
> 2012/7/23 John Henning <jhenning@deltak.com>
>
> Most common materials require 1 hour/25mm or 60minutes/25mm and I assume
> you are working with one of these materials. Then, for a 40mm thick
> material the required minimum soak time is (40mm)*(60min.)/(25mm) = 96
> minutes
>>
>>You don't meet Code required minimum soak time. Your soak time must
>> exceed the minimum time. Therefore, your pipe weld is unacceptable. No
>> discussion – it is clearly unacceptable in its present condition.
>>
>>John A. Henning
>>Welding & Materials
>>
>>From:materials-welding@googlegroups.com
>> [mailto:materials-welding@googlegroups.com] On Behalf Of mohd
>>Sent: Saturday, July 21, 2012 1:52 AM
>>To: materials-welding@googlegroups.com
>>Subject: [MW:14919] Stress relieving Rejected for 5 min less soaking
>> time.
>>
>>Dear expert,
>>
>>As per ASME 8-1-UCS-56
>>
>>We have done SR for our 40mm thk-30" pipe joint.
>>
>>but unfortunetly, soaking time was just short by 5min.Now our client/PMC
>> both are not agree to release.
>>
>>Required time : 1hr.15min
>>Actual Time : 1hr.10min
>>
>>It is acceptable OR could you share any technical view
>> to convince client?
>>
>>regards,
>>mohd.--
>>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
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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.
>>______________________________________________________________________
>>The
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>>The views
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>
> educational purposes only, Users must take their own decisions w.r.t.
> applicable code/standard/contract
> documents.
>>
>
>
> --
>
> regards,
> Harish.
> --
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> The
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> for
> educational purposes only, Users must take their own decisions w.r.t.
> applicable
> code/standard/contract documents.
>
> --
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>
> --
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>

--
*Prashant Pansare*
*(IRS - Mumbai)*

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[MW:14987] RE: 14980] Crosscountry Pipeline construction welding position of Pipe on hill

Dear All,

This position is 100%- 6G only no need to doubt in this matter – (for clarification may refer to Sec IX)

And 5G will come for the pipe on the ground position – not involved any angular position.

Thanks and Regards................?

Lakshman Kumar.B|Manager |Lanco Infratech Limited

Plot No 1255 | Sanjeevani chowk | Mahanadi vihar | Cuttack 753004

Phone : + 91 671 2445033 | Mobile : +91 9937286851 |www.lancogroup.com

Go Green|The future will thank you

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of BHARAT GOLE
Sent: Monday, July 30, 2012 10:06 AM
To: Material Welding
Subject: [MW:14980] Crosscountry Pipeline construction welding position of Pipe on hill

In Crosscountry Pipeline construction what is welding position of Pipe on hill with respect to Welding Procedure as well as Welder qualification. Slope of hill is around 30 °.

I had always doubt whether it is 5G or 6G ? In fact I heard always debate on this issue.

Appreciate your expert comments soon.

Regards

Bharat B. Gole

Re: [MW:14986] RE: 14980] Crosscountry Pipeline construction welding position of Pipe on hill

Mr. Bharat,

For hill locks/slopes, it should be 6G - (pipe inclined to 45deg -welding in vertical

down) using E6010 (or) any E xxx0 for root application, followed by E7013 (or) any

E xxx3 for hot pass.

It covers both 6G and 5G position used in plain terrains (pipe - horizontal) also.

sridhar.

From: ARC WELDING COMPANY <arcweldingcom@gmail.com>
To: materials-welding@googlegroups.com
Sent: Monday, 30 July 2012 12:58 PM
Subject: [MW:14983] RE: 14980] Crosscountry Pipeline construction welding position of Pipe on hill

Dear sir,

If the pipe is inclined, it has to be 6G position.

Regards,

For Arc welding company,

Anil Verma

9999200148

In Crosscountry Pipeline construction what is welding position of Pipe on hill with respect to Welding Procedure as well as Welder qualification. Slope of hill is around 30 °.

I had always doubt whether it is 5G or 6G ? In fact I heard always debate on this issue.

Appreciate your expert comments soon.

Regards

Bharat B. Gole

[MW:14985] Re: Reg: how to select filler wire for dissimilar metals

what is the cirteria for selecting the filler wire for DMW JOINT.
Wheteher filler for higher grade is considered or lower grade is considered?

On Wednesday, 4 May 2011 17:21:01 UTC+5:30, venkat kumar wrote:

dear experts,

pl guide me that how to select filler wire according to given material.for instance if material is dissimilar, base material having 9Cr,1Mo,other material SA 351 HK 40,having Cr.23-27,Ni.19-22.one of our expert suggested that ErNiCr-3 as a filler wire.Other than material what characteristics are we have to take in to consideration to select filler wire.

thanks & regards

Re: [MW:14984] Stress relieving of 410S

which electrode are u using for this purpose..i think it'z not
E309..if u r using E 410-XX electrode for welding, then heat to
730-760°C and hold for one hour before cooling it to ambient
temperature.. Refer SFA 5.4 Table 6..

On 7/28/12, kundan.ahirao@gmail.com <kundan.ahirao@gmail.com> wrote:
> Dear expert
> kindly advice and share your opinion
> we have cladding of SA516 gr 70 + SA 240 tp 410S.
> After explosion bonding manufacturer is giving SR cycle to clad plate at
> soaking temp 675 deg C.
> But at this temperature tensile strength of base metal will achieve or not.
> If not then what will be soaking temperature.
> Also as per our fabrication drg soaking temp given is 620 deg C.
> Thanks and regards
>
> --
> 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.
>

--
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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:14983] RE: 14980] Crosscountry Pipeline construction welding position of Pipe on hill

Dear sir,

If the pipe is inclined, it has to be 6G position.

Regards,

For Arc welding company,

Anil Verma

9999200148

In Crosscountry Pipeline construction what is welding position of Pipe on hill with respect to Welding Procedure as well as Welder qualification. Slope of hill is around 30 °.

I had always doubt whether it is 5G or 6G ? In fact I heard always debate on this issue.

Appreciate your expert comments soon.

Regards

Bharat B. Gole

Re: [MW:14982] Need PWHT IN TEST pice

You should perform either mechanical testing or NDE of the test piece
to check the soundness of weld metal. If you are performing RT, then
there is no need of PWHT as the delayed cracking and hardness is not
related to the talent of welder. But as per ASME BPV Section II Part A
SA 335 clause 12.3, NDE should be performed after heat treatment for
acceptance..means you need to perform NDE only after PWHT at your
job..
Rejoy Thomas(QA/QC Engineer)
UB Engineering Ltd.

On 7/28/12, vempati anjaneyulu <v.anjaneya@gmail.com> wrote:
> Please refer clause nos. QW353 and QW356 of ASME Sec.IX. PWHT is not
> an essential variable for welder performance qualifications, hence not
> required to do PWHT for test coupons.
> Anjan
>
> On 7/28/12, Santosh Patil <raj.san23@gmail.com> wrote:
>> Dear weld expert
>>
>>
>> I have a one Question that is in welder test P91 Material with welding
>> process gtaw for root and smaw for fillup and caping.
>> Preheating also given 250 degree. After cmplete the test pice can it is
>> necessary do pwht for welder qualification and Ndt process .
>>
>> --
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>> and
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>
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Re: [MW:14981] Need WPS clarification with ASME and EN

Dear Mr.Naresh,

Pls specify that whether in your job drawing all the materials are shown in BS standard or ASTM/ASME standards, also what is your job construction code ?

On Wed, Jul 25, 2012 at 10:37 PM, Naresh Kumar <snareshkumar30@yahoo.com> wrote:

Dear experts,

I have a doubt about WPS. Our company has WPS with ASTM material by ASME standard.

Whether this WPS can be used for the equivalent BS material or not.

Thanks & Regards,

Kumar S

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[MW:14980] Crosscountry Pipeline construction welding position of Pipe on hill

In Crosscountry Pipeline construction what is welding position of Pipe on hill with respect to Welding Procedure as well as Welder qualification. Slope of hill is around 30 °.

I had always doubt whether it is 5G or 6G ? In fact I heard always debate on this issue.

Appreciate your expert comments soon.

Regards

Bharat B. Gole

Sunday, July 29, 2012

[MW:14979] Aluminium Bronze weld overlay on P-1 Base metal.

Dear Experts,

Good day,

In one of our Job, requirement is Aluminium Bronze weld overlay on P-1 Base metal + PWHT. Weld deposit thickness is 3 to 5 mm. I shall have to qualify Welding Procedure in accordance with ASME Sec. IX using TIG manual process.

Which care shall I have to exercise during welding procedure qualificaiton regarding Initial Cleaning, Inter pass cleaning, Preheat temp., Inter pass temp., Post heating and PWHT Cycle (including H.R., Soaking Temp., Time and C.R.)? Further, the iron dilution should be restricted to 2.5% (maximum) in the finished undiluted layer.

Please suggest me the correct welding procedure to meet the requirements.

Thanks & regards,

C. R. GANDHI

Re: [MW:14978] RE: 14919] Stress relieving Rejected for 5 min less soaking time.

Dear Mr.Kapadia,

Thank you for such a reply which I would like to appreciate highly.

"If life throws you a lemon - make lemonade"- Joan Collins

Thanks & Regards

Sachin Tagare

On Fri, Jul 27, 2012 at 1:27 PM, prashant pansare <prashant.pan17@gmail.com> wrote:

Dear Sir,

This is what we experience (thinking beyond the CODE) form materials
-welding group experts.

Thanks,

Prashant Pansare
(IRS-Mumbai)

On 7/24/12, Chetan Kapadia <cbkapadia@yahoo.co.in> wrote:
> Dear All,
>
> I have been a CONSULTANT FOR such problem & my personal opinion is expressed
> as follow.
>
>
> I fully agree with views expressed so far.
>
> But bag to differ that "Code is a law, with engineering judgments.
> Hence the inspector has the rights to declare that the original HT was
> inadequate."
>
> Inspectors & total industry must resist the"REJECTION". We as intellectual &
> having seniority must become practical.
>
> How the code will revise???.
>
>
> ANS.: One is experiments (Pure research) & second is such chances that gives
> opportunity to experiment !!!
> _______________________________________________________________________________________________
>
> My understanding is that it is P1 material.
>
>
> In that case every pass normalizes the immediate bottom pass.
>
> Hence code requirement for P1 FOR MANDATORY SR is 32 mm & above thickness.
>
> SOLUTION:
>
> In any case
>
>
> 0. After SR=PWHT no PTC testing is required as per code--Unless for low
> temp. vessels. That means code is assuming that if every care is taken

> as per code then thereis not much of a change in mechanical properties of
> WELD & HAZ. Hence this minor time difference can not resultin tremendous

> non agreeable metallurgical & OR mechanical OR process guarantee

> type defect. Depending up onfinal use the best decision can be arrived at.

>
>
> 1.if sufficient length is available ON PRODUCT then carry out all DT.
>
> 2.if sufficient length is not available on product carry out HARDNESS survey
> on PP, HAZ & WELD.
> THIS WILL GIVE FAIR IDEA OF TT & WELD TENSILE VALUES. If + then proceed
> for all test on PTC.
>
> 3. Prepare additional Test piece & let it undergo simulated SR with less by
> 5 minutes. Test for all test required by
>
> product designed use.Prove with guts.Nothing goes wrong.
>
> Even if all above proves wrong accept the defeat with guts on
> experimenting.
>
> Please do it even for your self satisfaction. Who knows It might become a
> code case.
>
> How can we have code without negative tolerance on time: Whatsoever--???.
>
> All this is without any prejudice to the contribution by other experts in
> the group. Further comments welcome for better understanding on the issue.
>
>
> Best Regards,
> C.B.KAPADIA
> Free-Lance Fabrication Technology & API Monogram Certification consultant
>
>
>
> ________________________________
> From: pgoswami <pgoswami@quickclic.net>
> To: materials-welding@googlegroups.com
> Sent: Tuesday, 24 July 2012 5:42 PM
> Subject: RE: [MW:14949] RE: 14919] Stress relieving Rejected for 5 min less
> soaking time.
>
>
> Harish/Mohd,
>
> I am not trying to act as moderator.
>
> Looking at the problem, a separate simulation may be as
> time consuming as the original HT. Code is a law, with engineering
> judgments.
> Hence the inspector has the rights to declare that the original HT was
> inadequate. The simplest solution what looks to me is to perform additional
> SR
> for 15-20 mins and satisfy code requirements.
>
> PWHT time is all cumulative , and there no restriction
> form ASME code.
>
> Thanks.
>
> PradipGoswami,P.Eng.IWE

> Welding
> & Metallurgical Specialist
> Ontario, Canada.

> Email-pgoswami@sympatico.ca,
> pgoswami@quickclic.net
>
>
>
> ________________________________
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] On Behalf Of Harish
> Kannepalli
> Sent: Monday, July 23, 2012 11:58 AM
> To: materials-welding@googlegroups.com
> Subject: Re: [MW:14942] RE: 14919]
> Stress relieving Rejected for 5 min less soaking time.
>
>
> You can propose the following to your client:
> Perform Simulation on separate
> coupon, check the mechanical & metallurgical properties. If they meet the
> code requirements, it may be acceptable. After all, code is made by humans
> for
> humans.
>
>
> 2012/7/23 John Henning <jhenning@deltak.com>
>
> Most common materials require 1 hour/25mm or 60minutes/25mm and I assume
> you are working with one of these materials. Then, for a 40mm thick
> material the required minimum soak time is (40mm)*(60min.)/(25mm) = 96
> minutes
>>
>>You don't meet Code required minimum soak time. Your soak time must
>> exceed the minimum time. Therefore, your pipe weld is unacceptable. No
>> discussion – it is clearly unacceptable in its present condition.
>>
>>John A. Henning
>>Welding & Materials
>>
>>From:materials-welding@googlegroups.com
>> [mailto:materials-welding@googlegroups.com] On Behalf Of mohd
>>Sent: Saturday, July 21, 2012 1:52 AM
>>To: materials-welding@googlegroups.com
>>Subject: [MW:14919] Stress relieving Rejected for 5 min less soaking
>> time.
>>
>>Dear expert,
>>
>>As per ASME 8-1-UCS-56
>>
>>We have done SR for our 40mm thk-30" pipe joint.
>>
>>but unfortunetly, soaking time was just short by 5min.Now our client/PMC
>> both are not agree to release.
>>
>>Required time : 1hr.15min
>>Actual Time : 1hr.10min
>>
>>It is acceptable OR could you share any technical view
>> to convince client?
>>
>>regards,
>>mohd.--
>>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.
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>
> educational purposes only, Users must take their own decisions w.r.t.
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> --
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> regards,
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> educational purposes only, Users must take their own decisions w.r.t.
> applicable
> code/standard/contract documents.
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>
> --
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> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
>

--
*Prashant Pansare*
*(IRS - Mumbai)*

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Saturday, July 28, 2012

[MW:14977] Stress relieving of 410S

Dear expert
kindly advice and share your opinion
we have cladding of SA516 gr 70 + SA 240 tp 410S.
After explosion bonding manufacturer is giving SR cycle to clad plate at soaking temp 675 deg C.
But at this temperature tensile strength of base metal will achieve or not.
If not then what will be soaking temperature.
Also as per our fabrication drg soaking temp given is 620 deg C.
Thanks and regards

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Re: [MW:14976] Need WPS clarification with ASME and EN

ASME: remember that Group No is supplementary essential parameter. So the PQR, in case impact test is required needs to be repeated. A no is an essential parameter which is very frequently forgotten and is related to the chemical composition of the filler metal.
So in ASME parameters related to chemistry and material properties are P, group, A number and indirectly the F number
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager

From: Ammar Shaikh [ammar.ali.shaikh@gmail.com]
Sent: 27/07/2012 20:34 ZE5
To: materials-welding@googlegroups.com
Subject: Re: [MW:14970] Need WPS clarification with ASME and EN

WPS for any specified material takes into consideration the chemical composition and mechanical properties which are validated by PQR.

You can use the WPS if chemical composition is within range, remember that a WPS is valid for all materials of same P No.

I have used the same to successful results in a project. If you want you can get the same WPS validated by EN material PQR as an extra point for satisfaction.

Ammar Shaikh

On Thu, Jul 26, 2012 at 4:44 PM, c sridhar <sridhar305@yahoo.com> wrote:

yes, U can use any ASME, IS, EN or any group if P nos and Group nos matches in all respects.

sridhar.

From: Vinayak Kale <Vinayak_Kale@Lntenc.com>
To: materials-welding@googlegroups.com
Sent: Thursday, 26 July 2012 8:36 AM
Subject: Re: [MW:14960] Need WPS clarification with ASME and EN

Can , provided , all essential parameters & properties shall match

Regards

Vinayak Kale
OGSP - QA & I , HC - Upstream
EPC Block , 2nd Floor , Gate No.1
Saki Vihar Rd. Powai Campus
Mumbai - 400072
Ph : + 91 022 6705 3969
(M) - 9987875309
www.larsen toubro.com

[MW:14959] Need WPS clarification with ASME and EN

Naresh Kumar to: materials-welding@googlegroups.com
07/26/2012 08:34 AM

Sent by: materials-welding@googlegroups.com

From: Naresh Kumar <snareshkumar30@yahoo.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent by: materials-welding@googlegroups.com
Please respond to materials-welding@googlegroups.com

Dear experts,

I have a doubt about WPS. Our company has WPS with ASTM material by ASME standard.
Whether this WPS can be used for the equivalent BS material or not.

Thanks & Regards,
Kumar S
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Materials & Welding

Tuesday, July 31, 2012

Re: [MW:14997] SS Electrode Eccentricity Tester

[MW:14996] Re:Crack in the shell with thickness of 82.6 mm After PWHT

Re: FW: Re: [MW:14995] Stress relieving of 410S

Re: [MW:14994] Which Electrode/Filler wire we should use for 12Cr1MoV ?

[MW:14993] Which Electrode/Filler wire we should use for 12Cr1MoV ?

Re: [MW:14992] A106 Gr B Pipe Lowest Temperature

[MW:14991] A106 Gr B Pipe Lowest Temperature

Monday, July 30, 2012

[MW:14990] 4145H welding

FW: Re: [MW:14989] Stress relieving of 410S

Re: [MW:14988] RE: 14919] Stress relieving Rejected for 5 min less soaking time.

[MW:14987] RE: 14980] Crosscountry Pipeline construction welding position of Pipe on hill

Re: [MW:14986] RE: 14980] Crosscountry Pipeline construction welding position of Pipe on hill

[MW:14985] Re: Reg: how to select filler wire for dissimilar metals

Re: [MW:14984] Stress relieving of 410S

[MW:14983] RE: 14980] Crosscountry Pipeline construction welding position of Pipe on hill

Re: [MW:14982] Need PWHT IN TEST pice

Re: [MW:14981] Need WPS clarification with ASME and EN

[MW:14980] Crosscountry Pipeline construction welding position of Pipe on hill

Sunday, July 29, 2012

[MW:14979] Aluminium Bronze weld overlay on P-1 Base metal.

Re: [MW:14978] RE: 14919] Stress relieving Rejected for 5 min less soaking time.

Saturday, July 28, 2012

[MW:14977] Stress relieving of 410S

Re: [MW:14976] Need WPS clarification with ASME and EN

[MW:35346] Cast-iron welding

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From:	Naresh Kumar <snareshkumar30@yahoo.com>

To:	"materials-welding@googlegroups.com" <materials-welding@googlegroups.com>

Sent by:	materials-welding@googlegroups.com

	Please respond to materials-welding@googlegroups.com