Advice on PWHT of DSS
Advice on PWHT of DSS
(OP)
Hi ,
Can any one advise me on what basis the PWHT is required for DSS weld joints. Is there any guideline to go for PWHT for DSS welding.
ASME B 31.3 syas neither required not prohibited .
Can any one advise me on what basis the PWHT is required for DSS weld joints. Is there any guideline to go for PWHT for DSS welding.
ASME B 31.3 syas neither required not prohibited .





RE: Advice on PWHT of DSS
RE: Advice on PWHT of DSS
Unfortunately, I have no experience with PWHT of Duplex so can't comment on the question itself. I know that PWHT of regular austenitic stainless steel is controversial and that many feel the disadvantages of PWHT will outweigh the benefits with that material. Just don't know on the duplexes ...
RE: Advice on PWHT of DSS
RE: Advice on PWHT of DSS
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Advice on PWHT of DSS
DSS Duplex Stainless steel of UNS NO 31803 and 32607(25%Cr Super Duplex Stainless steel)which we are using in sour service with Service temperature min 5 and max 82 Deg Celsius.
the Welding using GTAW process.the material is in solution annealed condition.My doudt is whether we need solution ammealing after welding.any guideline to apply PWHT