| 摘要 |
PROBLEM TO BE SOLVED: To provide a can body material having excellent resistance to circulation pinhole in which the generation of pinholes can be prevented without increasing production cost. SOLUTION: The aluminum alloy sheet for a can body having excellent resistance to circulation pinhole has a composition comprising, by mass, 0.15 to 0.5% Si, 0.3 to 0.6% Fe, 0.15 to 0.5% Cu, 0.7 to 1.2% Mn and 0.8 to 2.0% (preferably <1.5%) Mg, and the balance Al with inevitable impurities, and in which sheet thickness is 0.250 to <0.275 mm, reoiling quantity is 50 to 300 mg/m<SP>2</SP>, the proof stress of the stock after baking is≥265 MPa, the tensile strength of the barrel part in the can body after can making by DI (draw-and-ironing) processing and coating/baking is >330 to 380 MPa (preferably, >340 MPa), and the elongation of the barrel part is≥4%. COPYRIGHT: (C)2007,JPO&INPIT
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