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Q. Is there one "do it all" shielding gas for MIG welding? I primarily use 75Ar/25CO2 on mild steel, but would like to be able to do aluminum and stainless, too. If not, what gases would be required? (Submitted by: Russell Selkirk from Port Neches, TX)
A. If you ever invent the "do it all" gas, I want to be one of your investors!! Unfortunatly there is not one gas that can do it all right. Your 75/25 selection on mild steel is great. For aluminum you should use 100% Argon. A tri-mix of He, Ar and CO2 is the right way to do stainless. Hope this helps. Good luck.
A. If you ever invent the "do it all" gas, I want to be one of your investors!! Unfortunatly there is not one gas that can do it all right. Your 75/25 selection on mild steel is great. For aluminum you should use 100% Argon. A tri-mix of He, Ar and CO2 is the right way to do stainless. Hope this helps. Good luck.
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