Patent ID: 6440359
Filing Date: 2002-08-27
Classification: C22C,C22F

Abstract:
A DC cast extrusion ingot of an alloy of composition consisting of 0.20-0.34 wt. % Mg, 0.35-0.60 wt. % Si, 0.02-0.15 wt. % Mn, up to 0.10 wt. % Cu, up to 0.35 wt. % Fe, optionally Ti and B as grain refiners, incidental impurities up to 0.05 wt. % each, up to 0.15 wt. % total, balance Al, provided that when Mg is at least 0.30 wt % and Cu is at least 0.05 wt %, then Fe is greater than 0.15 wt %.