Can body

A can body made of aluminum alloy and having a bottomed cylindrical shape comprising:

• a can bottom;
• and
• a can barrel having a cylindrical shape around a can axis and extending from an outer circumference of the can bottom along the can axis,
• the can bottom including:
• a dome part provided in a center of the can bottom;
• and
• an annular convex part continuing to an outer circumferential edge of the dome part and circumferentially projecting to an outside of the can body along a can axis direction,
• the annular convex part including:
• a recess provided to continue to the dome part and having a curved surface being convex to the outside of the can body in a radial direction;
• a ground part configured to support the can body;
• and
• an inner circumferential wall extending from the ground part to the recess, the ground part including:
• a first convex curved part and a second convex curved part, which sandwich a most projecting portion of the ground part facing downward in the can axis direction,
• wherein the first convex curved part is formed on a side close to the can axis and the second convex curved part is formed on a side far from the can axis wherein an outer diameter of the can barrel is 50 mm to 59 mm,
• a can height from the ground part to an upper end of the can barrel is 120 mm to 190 mm,
• a thickness of the aluminum alloy of the dome part on the can axis is 0.18 mm to 0.26 mm,
• in a vertical cross-sectional view including the can axis, a recess depth is 0.5 mm to 0.9 mm, a ground diameter is 44.0 mm to 47.0 mm, a radius of curvature of the first convex curved part is 0.4 mm to 0.7 mm, and a radius of curvature of the second convex curved part is 1.6 mm to 2.2 mm,
• provided that the recess depth is a distance between a portion of the recess on an outer surface of the can body which is the farthest from the can axis and a portion of the ground part on the outer surface of the can body which is the closest to the can axis in the radial direction, and
• the ground diameter is a diameter of a most projecting portion of the ground part facing downward in the can axis direction,
• the inner circumferential wall includes an inclined surface, and an angle formed between the inclined surface and the can axis is 15 degrees to 30 degrees,
• a radius of curvature of the recess is 0.3 mm to 1.2 mm;
• and
• a distance between the most projecting portion of the ground part facing downward in the can axis direction and the portion of the recess on the outer surface of the can body which is the farthest from the can axis is 1 mm to 4 mm, and
• the dome part includes a tapered part having one end continuing to an outer circumferential edge of the dome part and the other end continuing to the recess.