PWHT
PWHT
(OP)
Is there an actual ASME code limiting the number of times I can PWHT WC6 P4 material? Any help on this subject would be greatly appreciated.
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RE: PWHT
If the application of the casting requires impact testing per a specific Code or Standard, cumulative PWHT time becomes an essential variable because this will affect impact properties.
If impact requirements are not specified, you can repair a casting as many times as necessary OR unless the purchaser has specified in the PO a limit as to the number of weld repairs.
RE: PWHT