Hey Guys, I want to thank everyone for the GTAW purge info it worked great. Now I have another question, as I said before I'm working with 6"-10" or so sch. 40 316 ss pipe. I am just wondering if there are any tricks for doing the cover pass. The root and hot pass are easy if you walk the cup, not so easy for the cover. I am using 1/8 316 filler , 3/32 2% tungsten and straight argon. I can do a 7018 cover without a thought but have never did a cover with GTAW.
Thanks, ED
Steamfitters Local 638 New York