WPS stainless steel (P.No6 to P.No8)

[DCV369]

I wonder where I can find a prequalified WPS stainless steel (P.No6 to P.No8)
Check the site of the AWS (

http://pubs.aws.org/search?q=B2.1&page=01)

and there are only (P.No8 to P.No8)

 

[metengr]

Probably not for the martensitic stainless steels (P-No 6 base materials) because of their hardenability, preheat and PWHT requirements and selection of filler metal.

 

[Duwe6]

Prequalified WPS's are only for 'plain vanilla' procedures. For anything other that those, you are required to develop your own procedure - PQR + WPS. Makes you prove that you can really do what you claim you can do.