Stress relief include in PWHT
Stress relief include in PWHT
(OP)
Dear all,
I have carbon steel shell with 60 mm which is mandatory for PWHT. In other hand we also require stress relief because of extreme fiber elongation excedd 5% during forming.
Can I include stress relief in PWHT for this shell ? In other word there is only one heat treatment.
Looking forward for your information.
I have carbon steel shell with 60 mm which is mandatory for PWHT. In other hand we also require stress relief because of extreme fiber elongation excedd 5% during forming.
Can I include stress relief in PWHT for this shell ? In other word there is only one heat treatment.
Looking forward for your information.





RE: Stress relief include in PWHT
RE: Stress relief include in PWHT
Steve Braune
Tank Industry Consultants
www.tankindustry.com
RE: Stress relief include in PWHT
RE: Stress relief include in PWHT
You're right... nothing better than reading what the Code really says. Again, I working from memory (w/o a Code), but if the PWHT is taken above the lower transformation temperature there are additional Code requirements for the WPS/PQR found in ASME Section IX. Am I correct?
Steve Braune
Tank Industry Consultants
www.tankindustry.com
RE: Stress relief include in PWHT
I try not to work from memory as I am wrong about 50% of the time. Have CRS.
RE: Stress relief include in PWHT
RE: Stress relief include in PWHT
RE: Stress relief include in PWHT
RE: Stress relief include in PWHT
This heat treatment can be clubbed with final vessel PWHT.