Materials & Welding

Refer attached interpretations On Sun, 31 Oct 2021, 10:30 Vishwas Keskar, < vvkeskar123@gmail.com > wrote: Thanks for Sir. Pl help for ref for Code or Code case. On Fri, 29 Oct 2021, 21:40 pgoswami, < pgoswami@rogers.com > wrote: Sec VIII,Div1:- 40 mm thickness calls for PWHT irrespective of service,  lethal or Non- Lethal.  Would like to see in  DIV1,which code clause or code case,  allows application of buttering on C.S, PWHT of individual sections, welding of the closing seam by austenitic filler metal with no PWHT. Thanks.  P.Goswami.  Sent from my Bell Samsung device over Canada's largest network. -- 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 discus...

Dear Prasad  Thanks for technical support. Pl share where this was deployed. Our vessel is ASME SEX VIII DIV 1 vessel U stamping and TPI is involved. Any Code back up , Code case  will be further helpful . On Sun, 31 Oct 2021, 10:30 Prasad Ghanekar, < prsgne@gmail.com > wrote: Sir, 1. In this case buttering is carried out prior to PWHT 2. PWHT is due to thickness of P1 material 3. No welding involved with P1 material in closing joint 4. PWHT is not mandatory for P8 welds. That's my analysis and understanding. We have implemented such practice in past due to some construction constraints. Regards, Prasad G. On Fri, 29 Oct 2021, 21:40 pgoswami, < pgoswami@rogers.com > wrote: Sec VIII,Div1:- 40 mm thickness calls for PWHT irrespective of service,  lethal or Non- Lethal.  Would like to see in  DIV1,which code clause or code case,  allows application of buttering on C.S, PWHT of individual sections, welding of the closing seam by austenitic filler metal with no PWHT. Thanks....

Thanks for Sir. Pl help for ref for Code or Code case. On Fri, 29 Oct 2021, 21:40 pgoswami, < pgoswami@rogers.com > wrote: Sec VIII,Div1:- 40 mm thickness calls for PWHT irrespective of service,  lethal or Non- Lethal.  Would like to see in  DIV1,which code clause or code case,  allows application of buttering on C.S, PWHT of individual sections, welding of the closing seam by austenitic filler metal with no PWHT. Thanks.  P.Goswami.  Sent from my Bell Samsung device over Canada's largest network. -- 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/617c1ce1.1c69fb81.e31de.34e7SMTPIN_ADDE...

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Dear Vishwas,  If you want avoid the PWHT localized and  the impact test, r eview the engineering specification for this vessel, what is required, the qualified WPS, type of process and electrodes used.   if you buttering with ENiCrFe2 and finish  with E-309, you are creating a dissimilar weld on the vessel.  Does the qualified WPS authorize it ?   Regards,  Ramon Briceño www.linkedin.com/in/ramonbriceno-metalengineer Ramon Briceno - Materials & Corrosion Relator - Engi-Learn | LinkedIn View Ramon Briceno's profile on LinkedIn, the world's largest professional community. Ramon has 7 jobs listed on their profile. See the complete profile on LinkedIn and discover Ramon's connections and jobs at similar companies. www.linkedin.com De: materials-welding@googlegroups.com <materials-welding@googlegroups.com> en nombre de Vishwas Kes...

Since your furnace length is 24meters, you have the option to pWHT the entire vessel as provided in the code below with minimum overlap. First PWHT one end for 24meters and then PWHT the another end by reversing with required overlap "> Thanks & Regards J.Gerald Jayakumar On Friday, 29 October, 2021, 02:46:22 pm GMT+4, james gerald <gerry_tup@yahoo.com> wrote: Please experts to share on Designer's view with respect to different lateral expansion though Design temperature is +250degC Thanks & Regards J.Gerald Jayakumar On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote: ...

Sir , its 40 mm thickness shell. On Fri, 29 Oct 2021, 18:03 , < pgoswami@rogers.com > wrote: Hi Vishwas, Your query does not indicate the thickness , which is most critical aspect of choosing the PWHT cycle. Irrespective of that, it's not advisable to leave one joint, especially the closing joint without PWHT and commission the vessel in service. You may better perform a LOCAL PWHT at the site. Also using dissimilar consumable is encouraged , only if dissimilar metal welding is involved. In this case use of dissimilar welding consumable is not desired, that may add undue thermal stress in service on the joint welded.   Thanks.   Pradip Goswami.P.Eng, IWE. Cell/Whasapp:1-905-9793232   From: james gerald < gerry_tup@yahoo.com > Sent: October 29, 2021 6:46 AM To: materials-welding@googlegroups.com Subject: Re: [MW:32577] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness   Please experts to share on Designer's view with respect to different lateral expansion though...

Hi Vishwas, Your query does not indicate the thickness , which is most critical aspect of choosing the PWHT cycle. Irrespective of that, it's not advisable to leave one joint, especially the closing joint without PWHT and commission the vessel in service. You may better perform a LOCAL PWHT at the site. Also using dissimilar consumable is encouraged , only if dissimilar metal welding is involved. In this case use of dissimilar welding consumable is not desired, that may add undue thermal stress in service on the joint welded.   Thanks.   Pradip Goswami.P.Eng, IWE. Cell/Whasapp:1-905-9793232   From: james gerald <gerry_tup@yahoo.com> Sent: October 29, 2021 6:46 AM To: materials-welding@googlegroups.com Subject: Re: [MW:32577] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness   Please experts to share on Designer's view with respect to different lateral expansion though Design temperature is +250degC   Thanks & Regards J.Gerald Jayakumar   ...

Please experts to share on Designer's view with respect to different lateral expansion though Design temperature is +250degC Thanks & Regards J.Gerald Jayakumar On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote: The vessel details are  MOC - SA 516 GR 70  DIAMETER- 4020mm LENGTH - 37 MTR MDMT = - 50 Deg C to  + 250 Deg C  SERVICE - Non lethal /No Hydrogen Service  We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site ) Proposal -  1.MOC - SA 516 GR 70  2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end) 3,PWHT (section PWHT - One of 24  length and other 13 m)  of  - ...

Normally the use of Nickel electrodes to avoid PWHT was practised in the SR(self reinforced) Nozzles where the vessel is not PWHTed and the Nozzle weld requires PWHT. Experts can throw some light on the C seam and any code restrictions. Thanks & Regards J.Gerald Jayakumar On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote: The vessel details are  MOC - SA 516 GR 70  DIAMETER- 4020mm LENGTH - 37 MTR MDMT = - 50 Deg C to  + 250 Deg C  SERVICE - Non lethal /No Hydrogen Service  We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site ) Proposal -  1.MOC - SA 516 GR 70  2.BUTTERING - ENiCrFe2 on 24 m section end and othe...

The vessel details are  MOC - SA 516 GR 70  DIAMETER- 4020mm LENGTH - 37 MTR MDMT = - 50 Deg C to  + 250 Deg C  SERVICE - Non lethal /No Hydrogen Service  We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site ) Proposal -  1.MOC - SA 516 GR 70  2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end) 3,PWHT (section PWHT - One of 24  length and other 13 m)  of  - 620 Deg C - 125 MINUTES  4.Bevel preparation  5.NDT - DPT  Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309  6.NDT - DPT AND UT Expert opinion please  and share experience if any  Vishwas  -- 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....

Dear Sir Can you provide me with the actual holding time for heat treatment of rod with diameter of 170mm  as the material is 25CrMo4   i need to apply hardening at 840C but i don't know the appropriate holding time matching with the diameter of 170mm Thanks in advance -- 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/fae61d6b-5a88-405d-b9ce-5c68c00e4356n%40googlegroups.com .

Send tabular excel sheet with material MOCs and type of joint . Address service conditions such as  temperature ,corrosion atmosphere , regards  On Mon, 25 Oct 2021, 08:44 Muhammad Azeem, < azeem7999@gmail.com > wrote: Dear Experts , I need your kind advise on priority basis as per below mentioned query raised by our vendor .. We have considered the following filler wire for girth welding of various combination. Pl confirm the same. For serial number A & B : ERNiCrMo‐3 (UNS N06625) For serial number C : ER 2553 (UNS 39553). A. Carbon Steel (P1 Gr 2) with UNS S32750 CRA Overlay to UNS S32750(D.S.S) Solid Alloy Branch connection B . Carbon Steel (P1 Gr 2) with UNS S32750 CRA Overlay to Carbon Steel (P1 Gr 2) with UNS S32750 CRA Overlay. C . UNS S32750 (D.S.S) Solid Alloy Girth welded Joints. My Suggestion  the suitable filler wire. ERNiCrMo‐3 (UNS N06625) / ERNiCrMo‐8 (UNS N06975) is acceptable to weld for serial number A & B . with reference to corrosion  ER 2553 (UNS 3...