I'm working for a Petrochemical Indutry involed in vlaves production: I would be happy if someone can explane to me the meaning of "dual grade" for SS material (e.g. 316/3163L) and whether some specs/ASME code decalre the material as dual grade or not.
Thanks
Carlos
I need to know whether is possible to weld a valve made of ASTM A182 F11 with pipe in ASTM A105N.
In this case what filler metal can be suitable?
Probably we must issue a new WPS/PQR in order to qualify this welded bead.
Thanks
C.