Patent ID: 9663845
Date: 2017-05-30
CPC Classifications: B62D,C22C,C22F

Claim:
1. An aluminum alloy comprising: an alloy for components having increased strength with a yield point Rp 0.2 >200 MPa and at the same time an elongation at break A>6% after a heat treatment, or a yield point Rp 0.2 >120 MPa and at the same time a high elongation at break A>9% in a cast state or an elongation at break>10% after a T6 heat treatment, in particular for structural and chassis parts of a motor vehicle containing from 9 to 11.5% by weight of silicon, from 0.5 to 0.8% by weight of manganese, from 0.2 to 1.0% by weight of magnesium, from 0.1 to 1.0% by weight of copper, from 0.2 to 1.5% by weight of zinc, from 0.05 to 0.4% by weight of zirconium, from 0.01 to 0.4% by weight of Cr, not more than 0.2% by weight of iron, not more than 0.15% by weight of titanium, from 0.01 to 0.02% by weight of strontium and as balance aluminum and production-related impurities up to a total of not more than 0.5% by weight.