Materials & Welding

Hi Fernando,   Welding of 517 grades is never easy. It becomes difficult when impact properties are in question. If you could share details about (MTR) the materials, welding consumable, and the failed PQR, then there could be some meaningful suggestions provided.   Thanks.       Pradip Goswami, P.Eng,IWE Independent Welding & Metallurgical Engineering Specialist , Ontario,Canada. ca.linkedin.com/pub/pradip-goswami/5/985/299 pgoswami@quickclic.net pradip.goswami@gmail.com   From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Alan Denney Sent: Thursday, June 30, 2016 4:43 AM To: materials-welding@googlegroups.com Subject: [MW:25036] RE: 25027] impact results - UHT material welding   There is an assumption here that the weld as deposited met the certificate values which reduced as a resul...

If it's tky joint you shall qualify in 6 gr position in accordance with d1.1 Sent from my iPhone On Jun 30, 2016, at 9:20 AM, Kannayeram Gnanapandithan < kgpandithan@gmail.com > wrote: Question is for D1.1 THANKS & BEST REGARDS, KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1, CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Wed, Jun 29, 2016 at 2:19 PM, pradip kumar Sil < pradipsil@gmail.com > wrote: Groove design is not the essential variable as per ASME Sec IX  On Wed, Jun 29, 2016 at 10:29 AM, shaik amjad < amjadshaik7842@gmail.com > wrote: Dear All I have a PQR qualified in double v bevel  can i write a wps for single v using this PQR (code is AWS D1.1). I have a PQR qualified with double v joint , but in construction we need for TYK Joint ie single V ., So my question is can i write a WPS using this PQR nd change grove as Single V. Regards  -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&...

per plate? THANKS & BEST REGARDS, KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1, CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Thu, Jun 30, 2016 at 12:16 PM, Vishal Sharma < vishalsharma.sharma225@gmail.com > wrote: Dear Experts, Please advice test specimen required per heat or per plate for tensile test after simulation PWHT. Regards, Vishal Sharma -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To post to this group, send email to materials-welding@g...

There is an assumption here that the weld as deposited met the certificate values which reduced as a result of the PWHT. I don't expect that you had anything like the certificate results in your weld as-welded. Was it tested in the as-welded condition for comparison purposes? Normally PWHT would improve the results (not always though – because you are into the finer points of the weld metallurgy here). It is the way the weld has been deposited which gave the poor results, not what that consumable can achieve when deposited under ideal conditions.   Alan Denney AKD Materials Consulting Ltd     From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Fernando L Neto Sent: 29 June 2016 20:00 To: materials-welding@googlegroups.com Subject: [MW:25027] impact results - UHT material welding   Dear colleagues,    I hope this email finds all you well   Project: ASME VIII- Pressure vessel - material ASME SA517 Gr B. T...

Dear experts Please reply with your suggestions for the below mentioned query, We are going to conduct the pqr qualification test for base metal - SA 516 gr.70(P 1 Gr.1,2 to P1 Gr.1,2) as per ASME Sec.IX Thickness of Base metal is 20 mm Which type of heat treatment is required during welding Preheat Interpass heating PWHT Thanks in advance Sent from Samsung Mobile

Dear Experts, Please advice test specimen required per heat or per plate for tensile test after simulation PWHT. Regards, Vishal Sharma -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To post to this group, send email to materials-welding@googlegroups.com . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAAK1seg7W5QbG%2BQ_Xp2p9LkeRU_0EMeD386U43P75zbnVLwK-g%40mail.gmail.com . For more options, visit https://groups.google.com...

Question is for D1.1 THANKS & BEST REGARDS, KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1, CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Wed, Jun 29, 2016 at 2:19 PM, pradip kumar Sil < pradipsil@gmail.com > wrote: Groove design is not the essential variable as per ASME Sec IX  On Wed, Jun 29, 2016 at 10:29 AM, shaik amjad < amjadshaik7842@gmail.com > wrote: Dear All I have a PQR qualified in double v bevel  can i write a wps for single v using this PQR (code is AWS D1.1). I have a PQR qualified with double v joint , but in construction we need for TYK Joint ie single V ., So my question is can i write a WPS using this PQR nd change grove as Single V. Regards  -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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 docu...

yes in Q&T steel,. before taking up for PWHT, better consult manufacturers for temperature and Time THANKS & BEST REGARDS, KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1, CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Thu, Jun 30, 2016 at 12:30 AM, Fernando L Neto < fernando.lescovar@gmail.com > wrote: Dear colleagues,  I hope this email finds all you well Project: ASME VIII- Pressure vessel - material ASME SA517 Gr B. Thickness 9,5 mm.  I have to qualify a WPS for welding ASME SA517 - B with impact requirements at -40 C,  Also is required PWHT, and my first results of impact test @-40C of test plate were very low. (lateral expansion less than 0,2mm and energy less than 20J) The declared Values of certificate of consumable is 75J @ -73C  !!! Can the presence of PWHT changes so much the values of impact test? (certificate´s value is "as welded" and my results is "after PWHT". Any help will be very useful.  Thanks a lot,  Fernando Lescovar Neto ...

I see quite complicated my very dear sir , it is easiest to think , that in my humble opinion ; make again inspection with PMI , this equipment contains a database large enough to pipe carbon steel or otherwise of the materials listed in Section II of ASME , then you give one or two suggestions of material to inspected and already with that outcome consult the code again , it will be easier to hit it to the identification of the material no desire to annoy, that inspection is best done when the materials are bought, to verify their authenticity before making installation and avoid catastrophic failures like the one you already have . Libre de virus. www.avast.com 2016-06-28 23:42 GMT-05:00 'Rajnish Dixit' via Materials & Welding < materials-welding@googlegroups.com > : Dear Mac, The chemical composition/properties of the tested material are aprx. meeting with SA335 P1/P2. It sh...

Dear colleagues,  I hope this email finds all you well Project: ASME VIII- Pressure vessel - material ASME SA517 Gr B. Thickness 9,5 mm.  I have to qualify a WPS for welding ASME SA517 - B with impact requirements at -40 C,  Also is required PWHT, and my first results of impact test @-40C of test plate were very low. (lateral expansion less than 0,2mm and energy less than 20J) The declared Values of certificate of consumable is 75J @ -73C  !!! Can the presence of PWHT changes so much the values of impact test? (certificate´s value is "as welded" and my results is "after PWHT". Any help will be very useful.  Thanks a lot,  Fernando Lescovar Neto (IWE) -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You...

Groove design is not the essential variable as per ASME Sec IX  On Wed, Jun 29, 2016 at 10:29 AM, shaik amjad < amjadshaik7842@gmail.com > wrote: Dear All I have a PQR qualified in double v bevel  can i write a wps for single v using this PQR (code is AWS D1.1). I have a PQR qualified with double v joint , but in construction we need for TYK Joint ie single V ., So my question is can i write a WPS using this PQR nd change grove as Single V. Regards  -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+u...

Dear Sir, A new WPS is to made (say WPS-B) for GTAW. When you are welding a joint where only GTAW is to be used then you have to use WPS-B and when you have to weld GTAW + SMAW then WPS-A to be followed. Separate WPS are to be maintained because of this reasons. No code references for this. When you are welding only with GTAW and mentioning WPS-A will make a misunderstanding that it is welded with GTAW + SMAW. So my opinion is to make a new WPS with the same PQR and maintain both WPS depends on the process you are using to weld. Regards, Hareesh K V +91-8547859202 On 29 Jun 2016 9:10 am, "Rajesh S.Mhaske,Engineer Welding,CSWIP,ASNT,Pune," < rajesh.mhaske17@gmail.com > wrote: Dear   Not required to prepared the New WPS. -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take t...

, but other essential variable to addressed, for example deletion of back gouging is essential, so u can not THANKS & BEST REGARDS, KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1, CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Wed, Jun 29, 2016 at 10:59 AM, shaik amjad < amjadshaik7842@gmail.com > wrote: Dear All I have a PQR qualified in double v bevel  can i write a wps for single v using this PQR (code is AWS D1.1). I have a PQR qualified with double v joint , but in construction we need for TYK Joint ie single V ., So my question is can i write a WPS using this PQR nd change grove as Single V. Regards  -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscri...

Dear All I have a PQR qualified in double v bevel  can i write a wps for single v using this PQR (code is AWS D1.1). I have a PQR qualified with double v joint , but in construction we need for TYK Joint ie single V ., So my question is can i write a WPS using this PQR nd change grove as Single V. Regards  -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To post to this group, send email to materials-welding@googlegroups.com . To view this discussion on the web visit http...

Dear Mac, The chemical composition/properties of the tested material are aprx. meeting with SA335 P1/P2. It should be tested when the material was received through PMI to confirm major elements like Cr, Mo, etc. Regards, Rajnish -------------------------------------------- On Wed, 6/29/16, 'Mac Palola' via Materials & Welding < materials-welding@googlegroups.com > wrote: Subject: [MW:25021] Chemical Composition To: "Materials & Welding" < materials-welding@googlegroups.com > Date: Wednesday, June 29, 2016, 12:07 AM Dear Sirs, Project: Coal fired power plant ASME B31.1 CODE We received a pipe material 1 inch dia with a material of A335 P91. This material had been welded. During operational, 2 years after, one pipe burst out. We send for testing to check the chemical composition. Please see attached docs. I checked on ASME Section II Part A and it was very far from the chemical requirements of A...

what was origina chemistry hardness  is very low THANKS & BEST REGARDS, KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1, CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Wed, Jun 29, 2016 at 1:37 AM, 'Mac Palola' via Materials & Welding < materials-welding@googlegroups.com > wrote: Dear Sirs, Project: Coal fired power plant ASME B31.1 CODE We received a pipe material 1 inch dia with a material of A335 P91. This material had been welded. During operational, 2 years after, one pipe burst out. We send for testing to check the chemical composition. Please see attached docs. I checked on ASME Section II Part A and it was very far from the chemical requirements of A335 P91. My query is that, what kind of pipe material base on the result of test report. Your reply to this query will be highly appreciated. Regards, Mac -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm The views expressed/exchnaged in this g...

Dear George, Thank you very much for the document shared. It's very useful. Pravin Poornachandran Sent from my iPhone On 27 Jun 2016, at 20:58, George Dilintas < dilintas@gmail.com > wrote: check this link https://app.aws.org/wj/supplement/sept99/HARWIG.pdf 2016-06-27 13:30 GMT+03:00 Pravin G < htcispravin@gmail.com > : Dear expert, What is the correlation between diffusible hydrogen and welding current. How does Welding current affects diffusible hydrogen ? Based on any specific code or theory? Kindly help to explain. Pravin Poornachandran Singapore Sent from my iPhone -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups...

Dear Sirs, Project: Coal fired power plant ASME B31.1 CODE We received a pipe material 1 inch dia with a material of A335 P91. This material had been welded. During operational, 2 years after, one pipe burst out. We send for testing to check the chemical composition. Please see attached docs. I checked on ASME Section II Part A and it was very far from the chemical requirements of A335 P91. My query is that, what kind of pipe material base on the result of test report. Your reply to this query will be highly appreciated. Regards, Mac -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from thi...

Dear Not required to prepared the New WPS. -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To post to this group, send email to materials-welding@googlegroups.com . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/fc45dd8b-3141-4740-859f-7fa308a4923a%40googlegroups.com . For more options, visit https://groups.google.com/d/optout .

Yes, diffusible hydrogen is more, more arc voltage is required to push the current due to bad conduct electricity by Hydrogen. Example 6010 is required more arc voltage when compared with 7018 On 28-Jun-2016 4:51 pm, < dilintas@gmail.com > wrote: Research papers demonstrate the contrary Sent from my BlackBerry 10 smartphone. From: 'prem_nautiyal26' via Materi...

Research papers demonstrate the contrary Sent from my BlackBerry 10 smartphone. From: 'prem_nautiyal26' via Materials & Welding Sent: Τρίτη, 28 Ιουνίου 2016 - 09:12 To: materials-welding@googlegroups.com Reply To: materials-welding@googlegroups.com Subject: Re: [MW:25017] Relation between diffusible hydrogen and welding current There is no relation between diffusible hydrogen content and Welding current. Sent from my Samsung Galaxy ...

Reduce the proporción of recycled flux.Ensure no moisture in flux by keeping and baking properly and in case situatión continúes.increase the proporción of new flux (100%). -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To post to this group, send email to materials-welding@googlegroups.com . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/85dd04a2-c109-440d-ad97-9df1610a6427%40googlegroups.com . For more options, ...

There is no relation between diffusible hydrogen content and Welding current. Sent from my Samsung Galaxy smartphone. -------- Original message -------- From: Pravin G <htcispravin@gmail.com> Date: 27/06/2016 16:00 (GMT+05:30) To: 'Agustin Jimenez' via Materials & Welding <materials-welding@googlegroups.com> Subject: [MW:25011] Relation between diffusible hydrogen and welding current Dear expert, What is the correlation between diffusible hydrogen and welding current. How does Welding current affects diffusible hydrogen ? Based on any specific code or theory? Kindly help to explain. Pravin Poornachandran Singapore Sent from my iPhone -- http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message beca...