| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for a can body, in which production of cracks upon rolling is suppressed, the occurrence rate of barrel breakage is suppressed, and thrusting strength is made high as well. SOLUTION: The aluminum alloy sheet has a composition comprising, by mass, 0.8 to 1.1% Mn, 1.3 to 1.7% Mg, 0.25 to 0.4% Si, 0.3 to 0.55% Fe, 0.3 to 0.45% Cu, 0.6 to 0.8% Si+Cu, Cu content≥Si content, and the balance Al. The aluminum alloy sheet has a sheet thickness of 0.240 to 0.265 mm, material tensile strength of≤325 MPa, stock proof stress of 285 to 310 MPa, material elongation of 2.5 to 4.5%, material proof stress after baking of≥280 MPa, (AB TS)-(AB YS) after material baking is≥37 MPa, tensile strength at the barrel part of a can body is 350 to 410 MPa, elongation of the barrel part is 4.5 to 5%, the change of TS by baking is≥10 MPa, and the change of YS by baking (H YS-AB YS) is≤10 MPa. COPYRIGHT: (C)2011,JPO&INPIT |
