Can I raise the min. thickness of base metal qualified in ASME IX
Can I raise the min. thickness of base metal qualified in ASME IX
(OP)
Although ASME IX gives min. and max. thickness range of base metal qualified by a size of coupon, can I raise the thickness min. if I want, I know I can lower the max for some reasons like PWHT, etc
e.g 1/16" to 2T, can I say 0.154" to 2T instead for the application I want to use it for/
Thanks a lot.
e.g 1/16" to 2T, can I say 0.154" to 2T instead for the application I want to use it for/
Thanks a lot.





RE: Can I raise the min. thickness of base metal qualified in ASME IX
For example, some of our customers impose thickness restrictions for certain materials such as duplex stainless steels, far in excess of Code rules. Those kind of changes don't invalidate a WPS.
RE: Can I raise the min. thickness of base metal qualified in ASME IX