Welding wire (Tig) for Magnesium (AZ92A)

The oxides on the surface is the main issue when welding Magnesium, to obtain good results the surface should be cleaned mechanically with a aluminum or stainless steel brush. For chemically cleaning a solution of 24 oz. Chromic acid, 5-1/3 oz. ferric nitrate and 1/16 oz. potassium fluoride in enough water to make one gallon. Bring the solution to 70-90° F then immerse the part for 3 minutes and rinse in hot water. Make sure that both the welding joint and the filler rod are properly cleaned. For the Tig process a Tungsten Zirconium electrode should be used preferable on AC current with pure Argon to offer proper melt pool protection. Argon / Helium mixture may be used when increased temperature and cleaning action is preferred.  Go to datasheet...