| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for a cap of which screw parts have improved fitting strength while the floating-up and deformation of a cap itself is prevented, the aluminum alloy sheet being excellent in, and to provide its production method. SOLUTION: The aluminum alloy sheet has a composition consisting of, by weight, 0.01 to 0.6% Si, 0.1 to 0.7% Fe, 0.01 to 0.2% Cu, 0.3 to 1.3% Mn and 0.3 to 1.4% Mg, and the balance Al with inevitable impurities. The aluminum alloy sheet has a tensile strength of 215 to 265 MPa, an elongation of≥3.0%, and an earing ratio of≤3.5%. COPYRIGHT: (C)2005,JPO&NCIPI
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