ASME IX qualification for Section VIII Div 1 non-code weld SA-240 316L vessel
ASME IX qualification for Section VIII Div 1 non-code weld SA-240 316L vessel
(OP)
Appreciate any help on this.
The question is about some internal bracketry, which is not attached/welded to the pressure boundary.
Bracket material is also SA-240 316L, which during operation may see temperature of 600°F - 700°F.
Is this temperature to be considered as essential for procedure qualification, or PQR to be tested "as-welded".
In general, where do we draw the line before we call something a post weld heat treatment fof 300 grade stainless steel?
Again, thanks for any help.
The question is about some internal bracketry, which is not attached/welded to the pressure boundary.
Bracket material is also SA-240 316L, which during operation may see temperature of 600°F - 700°F.
Is this temperature to be considered as essential for procedure qualification, or PQR to be tested "as-welded".
In general, where do we draw the line before we call something a post weld heat treatment fof 300 grade stainless steel?
Again, thanks for any help.





RE: ASME IX qualification for Section VIII Div 1 non-code weld SA-240 316L vessel
RE: ASME IX qualification for Section VIII Div 1 non-code weld SA-240 316L vessel
RE: ASME IX qualification for Section VIII Div 1 non-code weld SA-240 316L vessel
407.1(b)
(1)No PWHT
(2) PWHT within a specified temperature range.
One could believe from this that any additional heating after welding could be thought to be a PWHT, since no specific temperature is given as a so called line in the sand of when a temperature is considered PWHT.
metengr, when you say "Post weld heat treatment according to Code requirements is well above your service temperature" could you please provide the reference paragraph in which this is discussed?
Thanks again to both for responding.
RE: ASME IX qualification for Section VIII Div 1 non-code weld SA-240 316L vessel
Section VIII, UHA-105 then to Appendix A, A-350 and A-360 of Section II part D.
In other words, (other than the obvious corrosion resistance loss) embrittlement would be the concern, and that concern becomes a reality around 1100°F?
RE: ASME IX qualification for Section VIII Div 1 non-code weld SA-240 316L vessel