JXWu
Petroleum
- Oct 26, 2015
- 24
I found a weld defect on P-No. 1 material after it has been PWHT'ed.
I intend to repair the weld followed by another cycle PWHT. NDE will be same as original weld.
Question: Does the requirement of section PW-40.3, PW-40.3.1-9 applies if I were to PWHT the repaired weld?
My understanding of PW-40.3 is that it only applies if I do not want to perform PWHT after repairs.
My inspector and I have different interpretation of the words "final PWHT" as mention in PW-40.3.
ASME Section I, PW-40.3:-
"Defects in P-No. 1, all groups (if not otherwise exempted by Table PW-39-1), and P‐No. 3 Group Nos. 1 and 2 materials, and in the welds joining these materials, may be weld repaired after the final PWHT but prior to the final hydrostatic test. The welded repairs shall meet the requirements below."
Thanks!
I intend to repair the weld followed by another cycle PWHT. NDE will be same as original weld.
Question: Does the requirement of section PW-40.3, PW-40.3.1-9 applies if I were to PWHT the repaired weld?
My understanding of PW-40.3 is that it only applies if I do not want to perform PWHT after repairs.
My inspector and I have different interpretation of the words "final PWHT" as mention in PW-40.3.
ASME Section I, PW-40.3:-
"Defects in P-No. 1, all groups (if not otherwise exempted by Table PW-39-1), and P‐No. 3 Group Nos. 1 and 2 materials, and in the welds joining these materials, may be weld repaired after the final PWHT but prior to the final hydrostatic test. The welded repairs shall meet the requirements below."
Thanks!