Materials & Welding

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 t...

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.

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.ahi...

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.   -- 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://ma...

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.   -- 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.

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. ...

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 -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@go...

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. -- 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.

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. > ...

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,         ...

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 wh...

 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       From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of BHARAT GOLE Sent: Monday, July 30, 2012 10:06 AM ...

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 -- 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...

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, v...

Dear sir, If the pipe is inclined, it has to be 6G position. Regards, For Arc welding company, Anil Verma 9999200148       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 -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscr...

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 sma...

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  -- 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. -- To post to this group, ...

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

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  -- 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...

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 ...

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.

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 succ...