MIG Welding Wire, AWS Classification ER4043, Material Aluminum, Process MIG Welding (GMAW), Wire Diameter 0.035 in, Tensile Strength (As Welded) 34 ksi, Yield Strength (Minimum Required) 10 ksi, Yield Strength (As Welded) 28 ksi (100 Percent Argon), Spool Type Steel Spool, Series Alloy 4043, Weight 16 lb, For Material Type Aluminum to Aluminum, For Material Grade 4043, Welding Current Designation DCEP, For Welding Position Flat, Horizontal, Overhead, Vertical-Up WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)