best shielding gas for stainless tubing
 

i know argon ,but some one told me that Argon/CO2blends are very good as produce less surface oxide, good bead shape and wetting, broad penetration, and consistent quality.any truth in this be nice to know before i tackle my first manifold build

for tig welding-100% argon
for mig welding- trimix(co2, argon, & helium mix)