Materials & Welding

"> Please give some details regarding below, as anyone in the Group may provide solution to you. 1. Hardness Location (Weld & HAZ) 2. Type of Hardness Test, Vicker's, Brinell or Rebound Hardness Tester. 3. PWHT cycle, soaking temperature, Time, Heating Rate & Cooling Rate. 4. Welding Heat Input 5. Maximum temperature in The Tubes(steam) 6. Any additional details which you may feel may be useful. 380HB is way out of Rectification and let's seek experts advise. Thanks & Regards J.Gerald Jayakumar On Monday, 25 April, 2022, 11:49:16 am GMT+4, Chiranjeevi A <chiranjeevipuvvula@gmail.com> wrote: Dear james, Good morning,  Please find the below details, the following issue is related to the boiler steam drum tubes   Base Tube material: A213 T11   Obtained hardness value after PWHT : 380HB  ...

Pls provide some additional details. Hardness values obtained. Base Pipe/ PQR / Production Hardness Thanks & Regards J.Gerald Jayakumar On Monday, 25 April, 2022, 07:13:14 am GMT+4, Chiranjeevi A <chiranjeevipuvvula@gmail.com> wrote: Dear experts, We have an issue in the hardness value for P11 material of pipe. If the value exceeds what are the matigations required. Kindly advice Thanks and Regards chiranjeevi -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- 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 view this discussion on the web visit https:/...

Sometimes it is unavoidable that some Nozzle welds overlap Circum seam or Longitudinal seam, in that case the circum seam or Longitudinal weld seam shall be flush grinded and RT performed before welding and after successful RT results the Nozzle weld may be welded over flush grinded seam and perform necessary NDT after welding. I believe your question is Nozzle weld overlapping longitudinal seam. Thanks & Regards J.Gerald Jayakumar On Monday, 11 April, 2022, 08:54:50 am IST, prasad loke <prasadloke27@gmail.com> wrote: Dear experts ,  I need valuable guidance on following, Overlapping of circumferential weld joint over longitudinal weld joint in pressure nozzle is acceptable ?  If yes , then as per which reference standard and clause Thanks  Regards Prasad  On Mon, 4 Apr 2022, 9:11 am Ren...

since it is 6 pass, required On Tue, 5 Apr 2022 at 16:36, 'manohar matcha' via Materials & Welding < materials-welding@googlegroups.com > wrote: Please look into the attachment and advise that pwht is applicable for these channels as per API 660 clause 9.6.9 (a) or not? Both channels are belongs to one HE. Regards, Manohar. ClauseFrom: Raghuram Bathula < raghurambathula@gmail.com > Sent: Tue, 05 Apr 2022 15:37:49 To: Materials-Welding < materials-welding@googlegroups.com > Subject: Re: [MW:33030] channels and bonnets with six or more tube passes   it is from one end of HE to another end is consider as 1 pass (not individual channel)   On Tue, 5 Apr 2022 at 15:22, 'manohar matcha' via Materials & Welding < materials-welding@googlegroups.com > wrote: Dear Group Members, Please share your opinion/interpretation on API 660 Clause 9.6.9 (a)   Tube passes to be considered for individual channel or both channels (if Exchanger is having 2 cha...

Please look into the attachment and advise that pwht is applicable for these channels as per API 660 clause 9.6.9 (a) or not? Both channels are belongs to one HE. Regards, Manohar. ClauseFrom: Raghuram Bathula <raghurambathula@gmail.com> Sent: Tue, 05 Apr 2022 15:37:49 To: Materials-Welding <materials-welding@googlegroups.com> Subject: Re: [MW:33030] channels and bonnets with six or more tube passes   it is from one end of HE to another end is consider as 1 pass (not individual channel)   On Tue, 5 Apr 2022 at 15:22, 'manohar matcha' via Materials & Welding <materials-welding@googlegroups.com> wrote: Dear Group Members, Please share your opinion/interpretation on API 660 Clause 9.6.9 (a)   Tube passes to be considered for individual channel or both channels (if Exchanger is having 2 channels)?   in other words: Individual Channel passes to be considered or cumulative passes for both channels to be considered..? Regards, Manohar. ...

it is from one end of HE to another end is consider as 1 pass (not individual channel) On Tue, 5 Apr 2022 at 15:22, 'manohar matcha' via Materials & Welding < materials-welding@googlegroups.com > wrote: Dear Group Members, Please share your opinion/interpretation on API 660 Clause 9.6.9 (a)   Tube passes to be considered for individual channel or both channels (if Exchanger is having 2 channels)?   in other words: Individual Channel passes to be considered or cumulative passes for both channels to be considered..? Regards, Manohar.   -- -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- 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 view this discussion on the web visit https://groups.google.com/d/msgi...

Dear Group Members, Please share your opinion/interpretation on API 660 Clause 9.6.9 (a)   Tube passes to be considered for individual channel or both channels (if Exchanger is having 2 channels)?   in other words: Individual Channel passes to be considered or cumulative passes for both channels to be considered..? Regards, Manohar.   -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- 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 view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/20220405091610.29414.qmail%40f5mail-224-114.rediffmail.com .