A COLD-ROLLED ALUMINIUM-ALLOY SHEET FOR FORMING AND PROCESS FOR PRODUCING THE SAME

摘要

The present invention relates to a cold-rolled aluminum-alloy sheet having a high strength and a good formability required for producing a DI can. The sheet according to the present invention contains 0.1-2.0% Mn, 0.1-2.0% Mg, and 0.1 to 0.5% Si, has a thickness of 0.4 mm or less. The present invention is characterized by holding a sheet to a temperature of from 80 DEG to 150 DEG C., when it is already heat treated at 400 DEG -580 DEG C. and it is not yet finally cold-rolled. The sheet according to present invention is finally cold-rolled and has a fine grain size.