Hello,
I have a weld procedure from 1985 that was qualified on A333 Gr 6 to A420 WPL6.  This was classified as a P-No. 1 Gr 1 to P-No. 1 Gr 2 weld procedure.  My 1998-2007 copies of ASME IX state that A420 WPL6 is Group 1 (not Group 2).  Does anyone have a copy of ASME IX that is older than 1985 and can confirm what the Group number was?
Thanks for any help you can provide!