Aluminum alloy sheet, production method and application

The invention provides an aluminum alloy sheet, a production method and application and relates to the field of aluminum alloy sheets. The aluminum alloy sheet comprises, by weight percentage, not larger than 0.2% of Si, not larger than 0.35% of Fe, not larger than 0.15% of Cu, 0.2%-0.5% of Mn, 3%-4% of Mg, not larger than 0.1% of Cr, not larger than 0.25% of Zn, not larger than 0.03% of other single impurities, not larger than 0.15% of other impurities and the balance Al. The strength of the aluminum alloy sheet is between a 5052 alloy and a 5182 alloy. The production method of the aluminum alloy sheet sequentially comprises smelting and casting at specific process parameters, saw-cutting and surface milling, homogenization, 1+4 hot continuous rolling, cold rolling and other working procedures. The method is simple in process and suitable for industrial production. When the aluminum alloy sheet is applied, aluminum alloy sheets of different thicknesses are adopted for manufacturing can covers and pull rings