hardness across haz of P1-1 to P5a-1 with PWHT to 1250
hardness across haz of P1-1 to P5a-1 with PWHT to 1250
(OP)
fabricator joined a P1-1 to P5a-1 and completed PWHT to 1250F, B31.1 requires 1300+ for P5a material. ANI approved 1250F at 90 minutes soak, ramp was good.
I would like to confirm that joint is stress relieved can I use harness to confirm ?
Is there a reference of what to expect what hardness from base across the HAZ ?
I would like to confirm that joint is stress relieved can I use harness to confirm ?
Is there a reference of what to expect what hardness from base across the HAZ ?





RE: hardness across haz of P1-1 to P5a-1 with PWHT to 1250
At 1250 deg F, you should have adequate stress relief for even P-No 5A base materials.