heat treatment
heat treatment
(OP)
Which filler metals are considered non air hardening?
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RE: heat treatment
RE: heat treatment
1) Can this procedure be used for ASME piping per table 331.1.1?
2) Does section 331.1.3(b) apply to this procedure?
3) Does interpretation 15-18, file B31-96-036 question and reply (2) apply in this case?
RE: heat treatment
RE: heat treatment
1). No, for >3% Cr all ticknesses require PWHT.
2). The design code lists the requirements for preheat and PWHT. A WPS is qualified to Section IX and should have been qualified using the preheat and PWHT requirements per the design code (B31.3).
3). Sorry, don't have a copy of this Interpretation handy at the moment.