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Tig Weld 304 Stainless Tubing
Posted: Mon Jun 14, 2010 3:49 pm
by dbeau
First time welding 2" 304 Stainless Tubing - butt weld
1/16" 2% T-Tungsten 35 Amp - Argon
The bead looks pretty good (newbie) but is it normal for the inside of the tubing along the weld to be so ugly ?? What am I missing?
Re: Tig Weld 304 Stainless Tubing
Posted: Mon Jun 14, 2010 5:44 pm
by mister bobo
did you purge? the pipe-I mean....
Re: Tig Weld 304 Stainless Tubing
Posted: Mon Jun 14, 2010 8:31 pm
by pro mod steve
Gotta back purge.
Re: Tig Weld 304 Stainless Tubing
Posted: Tue Jun 15, 2010 5:15 pm
by Davidep82
If the stainless steel job is difficult to purge, I have used a black powdered flex (forget the name and I am not at the shop - your welding supplier can tell you) that you mix with Heet (or alcohol) to form a paste. Put it on the inside of the joints just before setup. Has worked well for me on custom stainless steel, header to bumper exhaust systems where purging is difficult.
Re: Tig Weld 304 Stainless Tubing
Posted: Tue Jun 15, 2010 11:43 pm
by pro mod steve
good to know.