Best Inert Gas For Welding Aluminum. MIG Welding Metal inert gas MIG welding can be successfully used to weld aluminum. Generally you will be using a pure argon shielding gas when you are MIG welding aluminum.
Generally you will be using a pure argon shielding gas when you are MIG welding aluminum. Argon is considered to be the best gas for gas metal arc welding. Carbon steels low alloy steels stainless steels most aluminum alloys zinc based copper alloys can be welded using this process.
It is however often mixed with other gas to refine the results.
It is however often mixed with other gas to refine the results. The sample dimensions were 100 75 20 mm3. When choosing a shielding gas 100 percent argon is best for MIG welding aluminum. Without a gas like argon present atmospheric gases will lead to degradation of the aluminum before it can set.