Hey guys~
I have a PQR here that was qualified about a year ago to section IX. (I'm not too familiar with SecIX). But I want to qualify one of my welding personelto the same WPS and PQR. It was made on 1/2" 6061-T6, CJP VeeGroove, no backing, 2G & 3G, GTAW. The PQR shows a min. preheat of 70 deg F, and a max interpass temp. of 350 deg F. My question is, where would I find the info that states those guide lines, as far as heat input goes? Would those have been actual temps recorded from the test pieces when the qualification was done originally?
Thanks
Jason