| 摘要 |
PROBLEM TO BE SOLVED: To obtain a bottle can material excellent in barrel cutting resistance at ironing and having appropriate strength. SOLUTION: The aluminum alloy sheet having a composition consisting of, by mass, 0.2 to 0.4% Si, 0.25 to 0.55% Fe, 0.15 to 0.35% Cu, 0.7 to 1.2% Mn, 0.8 to 1.4% Mg, 0.10 to 0.3% Zn, 0.01 to 0.15% Ti and the balance Al with inevitable impurities and also having 2 to 4.8% elongation of material and 240 to 270 MPa proof stress after baking is used. By this method, the bottle can material having excellent barrel cutting resistance at ironing while keeping low earing ratio and also having appropriate strength can be obtained. COPYRIGHT: (C)2005,JPO&NCIPI
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