I ran 45-48a with about 5-6LPH gas with 1/16 1.5%lanth tungston with 308L 1/16 rod on 304 SS 16ga. I don't have any close-ups of the exhaust but I do of my catch can which is the same exact pipe.

This was done with a #4 cup but I used a 5 or 6 on the exhaust.. I forget which.


I did get good color in my weld.