FIELD: metallurgy.
SUBSTANCE: high-strength Al-based wrought alloys of the Al-Zn-Mg-Cu system and article thereof contain, wt %: 7.8-8.2 Zinc, 2.0-2.4 magnesium, 1.8-2.1 copper, 0.1-0.17 scandium, 0.1-0.14 zirconium, 0.0005-0.001 cerium, 0.01-0.03 titanium, 0.0005-0.001 boron, aluminum and inevitable impurities, including not more than 0.12 iron, no more than 0.11 silicon, no more than 0.02 manganese, not more than 0.02 chromium, - the rest, while hydrogen is present in the alloy in an amount of 0.05-0.3 cm3/ 100 g of metal, and the ratio of magnesium and zinc is from 0.25 to 0.3.
EFFECT: increased strength characteristics, including specific strength of the material.
2 cl, 1 ex, 2 tbl
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