ALUMINUM ALLOY FOR MANUFACTURE OF SEMI-FINISHED PRODUCTS OR PARTS FOR CARS, METHOD FOR MANUFACTURING THE STRIP OF ALUMINUM ALLOY FROM THE SPECIFIED ALUMINUM ALLOY, THE STRIP OF ALUMINUM ALLOY

摘要

An aluminum alloy comprises 0.8 wt.% or less iron, 0.5 wt.% or less silicon, 0.9-1.5 wt.% manganese, 0.25 wt.% or less magnesium, 0.125 wt.% or less copper, 0.05 wt.% or less chromium, 0.05 wt.% or less titanium, 0.05 wt.% or less titanium, 0.05 wt.% or less zirconium, and remainder of aluminum and unavoidable elements at less than 0.05 wt.% individually and less than 0.15 wt.% in total. The total content of magnesium and copper is 0.15-0.25 wt.%. The proportion of magnesium in the aluminum alloy is more than the proportion of copper in the aluminum alloy. Independent claims are included for the following: (1) preparation of aluminum alloy strip; and (2) aluminum alloy strip.