Materials & Welding

Dear Shaik, Please note that S355J2 or JR Materials are unassigned materials without P nos, so you have to qualify with the actual base material in this case. However you can approach the clients by saying that the yield strength is same and the consumables used also will be same, in that case may be they will accept. On Mon, Oct 31, 2016 at 2:50 PM, shaik amjad < amjadshaik7842@gmail.com > wrote: If a wps is qualified in base metal S355J2 will it be qulified for S355JR Code AWS. I have WPS qualified with base metal S355J2  but now due to stock availability only S 355JR is available can i use same WPS for this one also . as only the grade is changing   -- 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 receive...

Confirmation for the flange face roughness (AARH) -usually reported in microns inch against the standard requirements (e.g ASME B16.5)shall be produced as an evident  Regards  Sam On Monday, 31 October 2016, Vijay Joshi < hivijay1970@gmail.com > wrote: Dear experts, A  2" RF WN flange gasket (or raised surface) area got blasted by oversight and NCR was raised by our client. We have done milling -machining on the surface to restore the raised face and it looks OK and acceptable but the client is asking for machining report. How is it done, I mean to confirm that the flange is acceptable? Can we see a standard report of such machining. Thankfully, Vijay Joshi -- 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. --- Yo...

If a wps is qualified in base metal S355J2 will it be qulified for S355JR Code AWS. I have WPS qualified with base metal S355J2  but now due to stock availability only S 355JR is available can i use same WPS for this one also . as only the grade is changing   -- 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/...

Dear experts, A  2" RF WN flange gasket (or raised surface) area got blasted by oversight and NCR was raised by our client. We have done milling -machining on the surface to restore the raised face and it looks OK and acceptable but the client is asking for machining report. How is it done, I mean to confirm that the flange is acceptable? Can we see a standard report of such machining. Thankfully, Vijay Joshi -- 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 ...

In case you use process with active gas of flux you have to perform a chemical analysis to determine the A no 2016-10-29 18:28 GMT+03:00 Patel Vivek < vivekpatel1303@gmail.com > : Possible... But keep dash(-) in A number in both WPS & PQR......custom undiluted weld metal....but they have to comply your other mechanical requirements.... On 29-Oct-2016 8:02 AM, "mmm" < mustaqnk@gmail.com > wrote: Dear Experts, Base material  : ASTM A333 GR.6 to A350 LF2 CL 1 or  P.No 1 & Group No.1 to P.No. 1 & Group No.2   Pipe 8'' Sch 20 & WN Flange 8'' Sch 20, Impact Test : - 46 ⁰C Code-ASME B31.3   GTAW- ER80S-Ni1 and A#10 SMAW-E7018-1 and A# 1 1) is it possible that we can have different WELD CHEMISTRY A #1 and A#10 in the same PQR please clarify? Regards mmm -- 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 m...

Dear All, Many thanks for your valuable feed backs. Also regret for the late response. Regarding the above, there was a mis-understanding that is in fact HAZ & base metal hardness was restricted to 225 HB while weld metal was at 236 HB. since one party raised this assuming 225 HB is applicable for all. Anyhow, all are within limit and hence OK. The testing was done with portable machine (MIC 10). I have one more query, when & where Brinell & vickers applicable specifically. Thanks in advance, Kumar. On 10/30/16, Perumal Govindan < perumalgovindan@gmail.com > wrote: > Dear Kumar, > > Please provide your hardness test report for further review or find below > snap shot for your reference. > > [image: Inline image 1] > > [image: Inline image 2] > > Regards > Govindan > > > On Fri, Oct 28, 2016 at 11:15 PM, Kumar < sk7920541@gmail.com > wrote: > >> Dear experts, >> In our...

Dear Waqas السلام عليكم ورحمة الله Please advise us about the following 1. We are preparing a new WPS for in-service welding. 2. Our scope is mechanical sleeve type b pipeline repair. 3. The pipeline operation condition has several flow rates. do we need to make individual WPS for each flow rate, or one WPS could be applicable for all the flow rates? Thanks,,, Ibrahim Ali Elfadol Mohammed Construction Manager EXICO Petroleum Services Co. eng.iali17@gmail.com +249126466109 On Monday, December 8, 2014 at 10:59:58 AM UTC+3, Faisal Shahzad Meer wrote: Dear Waqas   Use the attached test assembly (Figure-B-2) given in appendice-B of API-1104. Then attached the pump with known flow rate with its "fluid in" nozzle during welding to simulate real welding conditions. Using water during PQR test will qualify all the flow rates and flow media because water produces severe thermal conditions.       Regards   Faisal Shahzad Meer Project Quality Supervi...

FCAW not recommended as it is high heat input process . The toughness of the root is affected  . The most important is to control the heat input at root as it is the most important run in the weld . That why GTAW is mostly recommended and it's a clean process . STT Lincoln or RMD miller is ideal as the current characteristic is well controlled and therefore the heat input . So to be on safer avoid FCAW for X-ray quality weld . On 30 Oct 2016 4:54 p.m., "'c sridhar' via Materials & Welding" < materials-welding@googlegroups.com > wrote: 1. I t will be difficult  to get consistent root penetration for 8.00  mm thick  200 mm dai.      pipe using 1.20 mm wire in FCAW manual or auto process. It may work out for a higher thickness     and larger size. 2. For 8 mm thick. 0.80 could be ideal and that size is not available in FCAW process. 3. Using GMAW (+) FCAW is gain not practical for 8 mm thick and also not economical. 4. GMAW process with Argon + CO2 as shi...

1. I t will be difficult  to get consistent root penetration for 8.00  mm thick  200 mm dai.      pipe using 1.20 mm wire in FCAW manual or auto process. It may work out for a higher thickness     and larger size. 2. For 8 mm thick. 0.80 could be ideal and that size is not available in FCAW process. 3. Using GMAW (+) FCAW is gain not practical for 8 mm thick and also not economical. 4. GMAW process with Argon + CO2 as shielding gas may help with two pass technique.     Again, LF may at times may affect X-ray quality  5. Alternatively you can try Pulsed Auto TIG process with Argon gas. It may meet your requirement. Sridhar.  09444971077 From: Vishwas Keskar Welding Manager Pune India <vvkeskar123@gmail.com> To: Materials & Welding <materials-welding@googlegroups.com> Sent: Wednesday, 5 October 2016 9:53 PM Subject: [MW:25487] Re: Open Root Pipe Welding / Groove Welding with FCAW Process STT proce...

Dear Kumar, Please provide your hardness test report for further review or find below snap shot for your reference. Regards Govindan On Fri, Oct 28, 2016 at 11:15 PM, Kumar < sk7920541@gmail.com > wrote: Dear experts, In our project for pressure vessels, moc- SA 516 gr.70 N, shell thickness 55mm (nace MR 0175). After doing PWHT, hardness measured and most of readings found in limit. According to procedure vessels having more than 50mm thick hardness value shall not exceed more than 225 (brinell for p no. 1). But some values are 228,230,18 etc.. could we get expert advise to adress this dis-parity pl. Thanks in advance, Kumar. -- 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...

Hi! You can control Hardness  for higher thickness weld by increasing the preheat temperature to through thk  and also some time by increasing Soaking time  of PWHT (As NACE application PWHT is mandatory) Regards Hegde On Sunday, 30 October 2016 9:22 AM, Perumal Govindan <perumalgovindan@gmail.com> wrote: Hi Please provide your hardness report for review to clarify. Regards Govindan On 29 Oct 2016 05:32, "Kumar" < sk7920541@gmail.com > wrote: Dear experts, In our project for pressure vessels, moc- SA 516 gr.70 N, shell thickness 55mm (nace MR 0175). After doing PWHT, hardness measured and most of readings found in limit. According to procedure vessels having more than 50mm thick hardness value shall not exceed more than 225 (brinell for p no. 1). But some values are 228,230,18 etc.. could we get expert advise to adress this dis-parity pl. Thanks in advance, Kumar. -- http://www.linkedin.com/ groups/MaterialsWelding- 12278...

Dear sir, As per API 650, above 12mm E7018 has to be use. Means up to 12mm E6013 has to use. I have only query to ask that, why e6013 not allow to use above 12mm. Regards Prasad -- 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/9d470b07-b7e7-4fd5-a607-4a65202d869e%40googlegroups.com . For more options, vi...

What is not prohibited by the Code is permitted. in that case you will have two different deposited thickness also  Sent from my Samsung Galaxy smartphone. -------- Original message -------- From: mmm <mustaqnk@gmail.com> Date: 28/10/2016 18:21 (GMT+02:00) To: Materials & Welding <materials-welding@googlegroups.com> Subject: [MW:25619] LTCS PQR Dear Experts, Base material  : ASTM A333 GR.6 to A350 LF2 CL 1 or  P.No 1 & Group No.1 to P.No. 1 & Group No.2   Pipe 8'' Sch 20 & WN Flange 8'' Sch 20, Impact Test : - 46 ⁰C Code-ASME B31.3   GTAW- ER80S-Ni1 and A#10 SMAW-E7018-1 and A# 1 1) is it possible that we can have different WELD CHEMISTRY A #1 and A#10 in the same PQR please clarify? Regards mmm -- 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 the...