Aluminum alloy sheet for can lids

Abstract

The invention relates to an aluminum alloy plate for can lids, which achieves both high strength and high toughness when mixed with filler materials derived from can materials. According to one aspect of the invention, this plate comprises: a Si content of 0.10% by mass or greater and 0.60% by mass or less; an Fe content of 0.20% by mass or greater and 0.70% by mass or less; and a Cu content of 0.10% by mass or greater and 0.40% by mass or less; The Mn content is 0.5% by mass or greater and 1.2% by mass or less, and the Mg content is 1.1% by mass or greater and 4.0% by mass or less, in which the yield stress 0.2% Ơ0 2, tensile strength ƠB and the average value Ơfm of the yield stress 0.2% and tensile strength satisfy the following formula (1): Ơftn / (oo.2^B) > 350 MPa ... (1).