
Welding 101: Getting Started With MIG …
Using The Right Gas And Wire. We’ve talked about selecting the correct shielding gas before. It does bare repeating however, if you want to get the best results. Also selecting the wire that matches the material you’re welding is important: For carbon steel you want to use a mix of 75% Argon, 25% CO2 this is also known as 75/25 in the industry.