FIELD: nonferrous metallurgy, more particularly aluminium-copper-magnesium-based alloys. SUBSTANCE: the claimed alloy composition comprises, wt %: copper, 3.8-4.5; magnesium 1.2-1.6; manganese, 0.4-0.8; titanium, 0.01-10.07; nickel, 0.01-0.05; hydrogen 2,7·10-5-5,0·10-5; and aluminium, the balance. EFFECT: high strength characteristics and higher acoustic fatigue. 1 ex, 2 tbl
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