MIL-W-45205B, MILITARY SPECIFICATION: WELDING, GAS METAL-ARC AND GAS TUNGSTEN-ARC, ALUMINUM ALLOYS, READILY WELDABLE FOR STRUCTURES, EXCLUDING ARMOR (06 APR 1982) [S/S BY TACOM DWG 12472301]., This specification covers the welding of aluminum alloys for structural applications other than armor by the gas metal-arc or gas tungsten-arc welding process.