ALUMINIUM ALLOY FOR MANUFACTURING SEMIFINISHED PRODUCTS OR PARTS OF AUTOMOBILES, METHOD OF MANUFACTURE OF ALUMINIUM ALLOY STRIP OF SAID ALUMINIUM ALLOY, STRIP OF ALUMINIUM ALLOY AND ITS APPLICATION Russian patent published in 2017 - IPC C22C21/00 C22F1/04 

FIELD: metallurgy.

SUBSTANCE: invention relates to aluminium alloy for manufacturing semifinished products or parts of automobiles, in which the alloying components of aluminium alloy have the following contents by 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 rest-aluminium and unavoidable impurity elements, taken separately <0.05, the sum is <0.15, and total content of Mg and Cu satisfies the following ratio of wt %: 0.15≤Mg+Cu≤0.25, wherein Mg content of aluminium alloy is greater than Cu content. Method for manufacturing the strip of aluminium alloy includes casting of ingot, homogenisation at 480-600°C for at least 0.5 hour, hot rolling at 280-500°C to form strip, cold rolling of strip to final thickness and recrystallisation finish annealing.

EFFECT: creation of aluminium alloy having good formability, sufficient strength and corrosion resistance.

14 cl, 2 tbl, 5 dwg