To provide a can in which the service range of the aluminum alloy to be used is expanded to the high strength material and the bulge workability is excellent.
An aluminum can body mainly consists of aluminum containing, by weight, 0.05-1.5% Si, 0.05-1.0% Fe, 0.2-5.5% Mg, 0.35-0% Cu, 2.0-0% Mn, the minimum thickness of a side wall part of the can body is 0.06-0.16mm, and the minimum thickness of the can body part is ≤70% of the thickness of an original sheet, and the can body ultimate deformation capacity w to be defined as w=1n(tb/tw), is w≤0.06F-2.1, where F is the maximum tensile load (kgf), tb is the thickness (mm) of a ductile fracture surface of the test piece obtained from the measured value of the test piece of 6mm in width of a parallel part, and tw (mm) in thickness in which the circumferential direction of the can obtained from the can body in the vicinity of H/2 is the longitudinal direction where H is the can height (mm), and the direction orthogonal to the rolling direction of can bottom is the center, and a two-piece seamless aluminum can body comprising the can body wall in which 15≤f<30, and w≤-0.7, and the present invention also relates to a manufacturing method.
KOBAYASHI AKIRA
MOTOSU IKUMI
IMAZU KATSUHIRO
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