ALA445
Mechanical
- Jul 12, 2019
- 16
Dear Experts, any idea how heating cycles for PWHT in NACE MR0175, required for the qualification of PQR for pressure vessel with P-1, Group 2 material where PWHT is a service requirement (UW-2) is different than the heating cycle mentioned UCS-56 of ASME VIII Div.1. Thanks for your expert advice!