Aluminum alloy with high strength and aesthetic appeal

摘要

PROBLEM TO BE SOLVED: To provide an aluminum alloy having high strength and aesthetic appeal, which is used in an application including an enclosure of an electronic device. SOLUTION: In mass%, at least 3.4% Zn, 1.3 to 2.1% Mg, 0.06% or less Cu, 0.06% or less Zr, 0.06 to 0.08. An aluminum alloy containing% Fe, at least 0.04% Si, the balance being aluminum and ancillary impurities, with stress corrosion cracking measured according to the G30 / G44 ASTM standard for more than 12 days to fracture. [Selection diagram] None