QW-407.6 PWHT FOR HFO
QW-407.6 PWHT FOR HFO
(OP)
For a hard-facing PQR on 1 inch thick coupon, per construction code, 1 hour is required for PWHT holding time for the 1 inch thick base material. If per QW-407.6, production component is 4 inch thick, should the PWHT for the PQR Coupon be done in 4 hours (1 hr/inch) for compliance with the QW-407.6 requirement?
Please advise.
Please advise.





RE: QW-407.6 PWHT FOR HFO
RE: QW-407.6 PWHT FOR HFO