HIGH-FORMING MULTI-LAYER ALUMINUM ALLOY PACKAGE

摘要

Provided herein are novel, high-forming multi-layer aluminum alloy packages that include a core layer and one or more cladding layers. The alloy packages have excellent bake-hardening properties and are highly recyclable. The packages also display exceptional bendability and elongation properties. Also provided herein are novel aluminum alloy compositions for use as cladding layers. The compositions contain up to 0.6 wt. % Fe and one or more of Mn, Ni, Ti, Co, Nb, Cr, V, Zr, Hf and Ta.

主权项

1. An aluminum alloy comprising about 0.2 to 0.6 wt. % Fe, 0.06 to 0.25 wt. % Mn, up to 0.5 wt. % Si, up to 0.5. % Cu, up to 1.5 wt. % Mg, up to 0.4 wt. % Zn, one or more additional elements selected from the group consisting of Ni, Ti, Co, Nb, Cr, V, Zr, Hf and Ta and up to 0.15 wt. % impurities, with the remainder as Al.