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argon mix for mild steel

what gas mix do you use for mild steel tig...


I dont use a mix...just pure argon.

same for stainless and aluminum.

for thicker aluminum, i use a helium argon mix about 50/50 or as high as 80 percent helium.

mixes like the standard 75/25 argon/co2 mix used for mig welding, do not work well for tig welding.

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