ASME IX QW 404.12
ASME IX QW 404.12
(OP)
Hello, i have a question about QW 404.12 in case of GTAW process with impact test requeriment (-196ºC).
If a filler metal classification (ER 316 to ER 308) is change in the same SFA specification (Both filler material are A5.9), i must requalified a PQR.
But, there is several exeption (maybe 404.12 e and f) that maybe allow me to change filler metal from ER316 to ER308 without new qualification.
Thanks
If a filler metal classification (ER 316 to ER 308) is change in the same SFA specification (Both filler material are A5.9), i must requalified a PQR.
But, there is several exeption (maybe 404.12 e and f) that maybe allow me to change filler metal from ER316 to ER308 without new qualification.
Thanks





RE: ASME IX QW 404.12
Div 1 and the MDMT is -196 deg C,QW-404.12 (e) and (f) do not apply. See UHA-51(e) Exemptions from Impact Testing for Welding
Procedure Qualifications. Read through this carefully.
RE: ASME IX QW 404.12
but just taken into account QW404.12: it is possible to change a filler material ER 308 for ER 316, if the original PQR was qualified with ER 308 (with impact test requeriment)?
About the desing code i am not sure if it is ASME VIII, the only information is for valve for services at -196ºC.
thanks
RE: ASME IX QW 404.12
RE: ASME IX QW 404.12
RE: ASME IX QW 404.12