| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for can-top having enough pressure resistance after filling beverage and excellent in rivet moldability and can opening property even with a thin wall with a thickness of about 0.2 mm.SOLUTION: There is provided an aluminum alloy sheet for can-top which is 5000 series Al alloy sheet containing Mg:3.8 to 5.5%, Fe:0.1 to 0.5%, Si:0.05 to 0.3%, Mn:0.01 to 0.6%, Cu:0.01 to 0.3% and having dislocation density of 0.5×1015 to 2×1015/m2 and subgrain area ratio in a range of 10 to 90% as a structure of a sheet thickness center part.SELECTED DRAWING: Figure 1 |
