ALUMINIUM ALLOY FOR PRODUCING SEMI FINISHED PRODUCTS OR COMPONENTS FOR MOTOR VEHICLES METHOD FOR PRODUCING AN ALUMINIUM ALLOY STRIP CONSISTING OF THIS ALUMINIUM ALLOY AND AN ALUMINIUM ALLOY STRIP AND USE FOR SAME

摘要

The invention relates to an aluminium alloy for producing semi finished products or components for motor vehicles in which the alloy constituents of the aluminium alloy have the following proportions in wt.%: Fe = 0.80 % Si = 0.50 % 0.90 % = Mn = 1.50 % Mg = 0.25 % Cu = 0.125 % Cr = 0.05 % Ti = 0.05 % V = 0.05 % Zr = 0.05 % the remainder being aluminium and inevitable accompanying elements at 0.05 % individually and 0.15 % in total and the combined proportion of Mg and Cu satisfying the following relation in wt.%: 0.15 % = Mg + Cu = 0.25 % where the proportion of Mg in the aluminium alloy is greater than the proportion of Cu in the aluminium alloy. The invention also relates to a method for producing an aluminium alloy strip from such an aluminium alloy comprising the following steps: casting a rolling ingot consisting of a claimed aluminium alloy homogenising the rolling ingot at 480�C to 600�C for at least 0.5 h hot rolling the rolling ingot at 280�C to 500�C to form an aluminium alloy strip cold rolling the aluminium alloy strip to its final thickness followed by the re crystallising final annealing of said aluminium alloy strip. The invention also relates to an aluminium alloy strip produced according to this method as well as to uses for the claimed aluminium alloy and a metal sheet produced from the claimed aluminium alloy strip.