thanx for the info chris- last stainless was 20" schedule 60 400(if i remember right) pipe in a refinery- i remember trying to put a 38 degree landing on reused pipe in a sulfur unit( 400-1000) degrees. i ran a 12 hr nightshift w/ a 13" grinder for 6 weeks....this stuff was so warped.. there was no redoing it- but that was our job-
