Washington Alloy 1100 (commonly referred to as Al99.5) is a 99% aluminum filler metal that is available in spools or cut lengths for MIG or TIG welding processes. Washington Alloy 1100 is commonly used for architectural and decorative applications, furniture, piping, deep drawing applications and spun hollow ware. Common applications would include base metal 1100, 3003, Aic. 3003 to similar base metals or to 1060, 1070, 1080 and 1350. Slight golden color after anodizing. Average tensile strength as welded is 13,500 psi.