RT after Stress in P4 Vessel
RT after Stress in P4 Vessel
(OP)
can someone tell me where in Sect VIII RT is required after stress for P4 material (Vessel over 1.25" thk)
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RT after Stress in P4 Vessel
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RE: RT after Stress in P4 Vessel
RE: RT after Stress in P4 Vessel
It is not necessary to state that NDT (when required bt Code) shall be done after welding. UW-40(e) states PWHT shall be performed after weld repairs.
Follows that NDT shall be done BEFORE PWHT to detect any necessary repairs. The only possible Code requirement for NDT after PWHT is to consider PWHT as an integral part of the welding process and thus NDT is also after PWHT when all repairs (if any) have been cleared.
Many contracts state NDT after PWHT and its the fabricators risk to omit the pre-PWHT NDT.
RE: RT after Stress in P4 Vessel
UT using a tech with a 'fast hand' is much cheaper & faster than RT.
RE: RT after Stress in P4 Vessel