qualification of weld repair after PWHT
qualification of weld repair after PWHT
(OP)
Is it possible per ASME IX and B 31.3 and B 31.8 to have qualified WPS with PWHT and to avoid qualification for the repair with same essential variables using qualified previous main WPS procedure. The second PWHT will be performed after repair in the same way as qualified by the main WPS.





RE: qualification of weld repair after PWHT
Could you restate the first part of your question? Your statement about main WPS and qualification of repair are confusing to me.
RE: qualification of weld repair after PWHT
I have qualified WPS with PWHT. I want to apply this for the repair procedure of the same weld without re-qualification of all this in a row (weld+PWHT+repair+PWHT). Is it possible?
RE: qualification of weld repair after PWHT
RE: qualification of weld repair after PWHT
RE: qualification of weld repair after PWHT
It was my humble thought (extended time), but I'll have to take care during proscribing of WPSs and qualification about this extended of time regarding EN 13445-4 (Page 46) and some limit of 3 hours and PWHT temperature to be less than 30 deg. C for Q+T materials. What do you think and suggest about it?
RE: qualification of weld repair after PWHT