Will give downhill on pipe a try,but on pressure pipe our procedure is all uphill.next time i do some drain pipe or something like a vent line will give it a try and let you know how it turns out.never used 6p rods.lots and lots of 6010 and 7018.took my pipe test a couple years ago,for a job. welded 12 joints of pipe then back to fab.stuff. am starting to do more pipe now.
Announcement
Collapse
No announcement yet.
Pipe Welding
Collapse
X
-
Originally posted by cnslmva
BOILERMAN79,
You ought to try downhill pipe, I love it compared to uphill! Try 5P+ or 6P+ (Lincoln's Pipeliner series is killer) 1/8" on sched 40 or 80 at 130 amps for root. Get your keyhole formed and let it rip. Its alot quicker than uphill!
Comment
-
HAWK,
Yes I use downhill because of the faster travel speeds. Most of my pipewelds are low and medium pressure (15PSI to 150 PSI) steam, water, air, and other commercial/industrial materials in common construction. I've not had the first problem with the procedure. Like you though, I have had to certify both uphill and downhill, 2 to 4 passes 6010 root 7018 fill and cap. Don't use the 7018 everyday though. Most welds are 6010 (Lincoln 6P+) root to cap. ASTM A53b steel isn't that strong!Chris
Comment
Comment