Thank you, Ok see that differing materials and designs makes scence here. Would the temps and hold times in table 56.1 be applicable in any other situations such as relative to equipment limitations?
For example utilization of an up to date certified older electric furnace with cyle time...
ASME 8 UCS- 56, Table UCS – 56 P-No 1, group 1 and 2 material PWHT, Note (1). When or under what circumstance does the wording “impractical” permit the use of table 56.1 for lower temp PWHT in production of a PQR?
Regards,
Jon