| 摘要 |
The purpose of the present invention is to provide an aluminum alloy plate for can lids, which achieves excellent rivet formability without lowering the material strength. One embodiment of the present invention provides an aluminum alloy plate for can lids, which contains 3.8-5.5% by mass of Mg, 0.1-0.5% by mass of Fe, 0.05-0.3% by mass of Si, 0.01-0.6% by mass of Mn and 0.3% by mass or less of Cu, with the balance made up of Al and unavoidable impurities, and which is characterized in that: the number density of intermetallic compounds having circle-equivalent diameters of from 10 nm to 300 nm (inclusive) is 80 compounds/μm3 or less; and the area ratio of intermetallic compounds having circle-equivalent diameters of more than 300 nm is from 0.3% to 2.0% (inclusive). |
