Manganese and magnesium rich aluminium strip

摘要

Aluminum alloy comprises (in wt.%): iron (0.2-0.5); magnesium (0.11-0.7); silicon (0.05-0.25); manganese (0.31-0.6); copper (0.04); titanium (0.1); zinc (0.1); chromium (0.1) and balance amount includes aluminum and unavoidable impurities each more than 0.05% to give a total of maximum 0.15%. Independent claims are included for: (1) an aluminum strip, for manufacturing lithographic printing plate support, made from the above aluminum alloy with a thickness of 0.15-5 mm; and (2) manufacturing aluminum strips comprising the above aluminum alloy comprising casting a ingot, homogenizing the ingot at 450-610[deg] C, hot-rolling the ingot to a thickness of 2-9 mm and cold-rolling the ingot with or without intermediate annealing to a thickness of 0.15-0.5 mm.