HIGH STRENGTH WELDABLE AL-MG ALLOY

摘要

An aluminium alloy product having high strength, excellent corrosion resistance and weldability, having the following composition in wt.%:- Mg 3.5 to 6.0 Mn 0.4 to 1.2 Fe < 0.5 Si < 0.5 Cu < 0.15 Zr < 0.5 Cr < 0.3 Ti 0.03 to 0.2 Sc < 0.5 Zn < 1.7 Li < 0.5 Ag < 0.4, optionally one or more of the following dispersoid forming elements selected from the group consisting of erbium, yttrium, hafnium, vanadium, each < 0.5 wt%, and impurities or incidental elements each < 0.05, total < 0.15 and the balance being aluminium.