HIGH-STRENGTH, CORROSION RESISTANT ALUMINUM ALLOYS FOR USE AS FIN STOCK AND METHODS OF MAKING THE SAME

Disclosed herein are high-strength, highly formable, and corrosion resistant aluminum alloys, methods of making and processing such alloys, and products prepared from such alloys. More particularly, disclosed are novel aluminum alloys exhibiting improved mechanical strength, formability, and corrosion resistance. The alloys can be used as fin stock in industrial applications, including in heat exchangers. According to some embodiments, the aluminum alloy comprises about 0.7 - 3.0 wt. % Zn, about 0.15 - 0.35 wt. % Si, about 0.25 - 0.65 wt. % Fe, about 0.05 - 0.20 wt. % Cu, about 0.75 - 1.50 wt. % Mn, about 1.00 - 1.50 wt. % Mg, up to about 0.10 wt. % Cr, up to about 0.10 wt. % Ti, and up to about 0.15 wt. % of impurities, with the remainder as Al. Methods of producing a metal product comprising the aluminum alloys are also disclosed.