The product worked alloy series alumu00ecnio AA - 7000 and method of production of the product

摘要

The product worked alloy series alumu00ecnio AA - 7000 and method of production of the product.The present invention relates to a product of aluminium alloy (AA - 7000 series, including (in% by weight): Zn 7.5 to 14.0 mg 1.0 to 5.0, Cu 0.3 0.28, Fe, Si 0,25 and one or more elements selected from the group consisting of Zr 0.30. You 0.30 0.30, HF, Mn 0.80, Cr 0.40 V 0 40, and SC 0.70, the remainder being: incidental elements and impurities, each 0.05, in total 0,15And the balance being aluminium, the mentioned product having reduced susceptibility to fracture the hot, and also properties of strength and hardness improved, and when in the condition of artificial ageing having a hardness of more than 180 Hb.