Welding test🔥 TIG Welding 6G Pipe Root Pass | TIG Time March 15, 2021 - Leave a Comment Weld.comMon, March 15, 2021 4:12amURL:Embed:Viewer Question: I have a question: When I am TIG welding roots, on a 6″ sch 40, sometimes i stop the lay wire process and keyhole, and sometimes it gets …