Best Gas Mix For Aluminum Welding. You should use 100 percent argon for aluminum. Ad Find China Manufacturers Of Aluminum Welding.
If weld quality and appearance are important an argonCO 2 mixture can provide arc stability weld pool control and reduced spatter. Ad Gas mixers especially for high and strongly fluctuating gas mixture flow rates. Ad Find China Manufacturers Of Aluminum Welding.
For stainless steel you may want to go with a mixture of 3 shielding gases.
Stainless Steel MIG weld done with C2 gas. Mixtures of argon and helium are probably the next common and pure helium is generally only used for some specialized GTAW applications. Argon gas by itself works well on most exotic metals like. In most applications this will create a pleasantly smooth weld and keep the amount of spatter to a minimum.