I read this group regularly and have found it most informative. I seen a number of welding problems answered here that I've have myself. This place is great...
Anyway enough of the flattery..
Most of my TIG welding is standard 1018 steel but I occasionally need to weld aluminium and 4130. While the choice for on welding rod for aluminum is pretty straight forward, what is good to use for the 4130? I was in a race shop the other night and the welder told me that he uses stainless steel rod, something like 308?
Also instead of having to figure out the color code on the tungstens, what is a good tungsten that can weld all of the above well? 1% Lanthanated?
Most of the welding is done in the 16 guage to1/4 inch range if that helps.