Weld repairs - ASME Section VIII
Weld repairs - ASME Section VIII
(OP)
Does this code define major and minor weld repairs? Where can I find it or can someone give me a head start? I know its a fairly generic quesiton, but it is mostly related to PWHT after a repair is made.





RE: Weld repairs - ASME Section VIII
"Major" and "minor" weld repairs are subjective terms, and the Code (ASME B&PV Code) does not address subjective terms.
The guidelines for PWHT in the Code are rather descriptive for repairs that exceed a certain percentage of the wall thickness because the excavation would be filled to restore the wall thickness back to original. Here is where the subjective terms of major versus minor originated, where "major" mandates the use of PWHT, while "minor" would require only a local preheat with no PWHT.
RE: Weld repairs - ASME Section VIII
Can you point me to a specific example, say P8?
RE: Weld repairs - ASME Section VIII
RE: Weld repairs - ASME Section VIII
Many times a Major or Minor is addressed in the QC System.
Such as: A Major would be repairs to the base metal and a Minor is repairs to a weld.
But if you are behind and the completion date was yesterday, its all Major.
RE: Weld repairs - ASME Section VIII
Owner/User should specify in their standards and specifications, what is considered minoror major repair and what actions (repairs, inspection, testing) need to be taken in both cases.
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