Mig Welding Wire AWS Classification ER4043 Material Aluminum Process MIG Welding (GMAW) Wire Diameter 0.03 in Tensile Strength (As Welded) 29 ksi Yield Strength (Minimum Required) Not Rated Yield Strength (As Welded) Not Specified Spool Type Plastic Spool Series ER4043 Weight 16 lb For Material Type Aluminum to Aluminum