Patent ID: 8574382

Claim:
A cold-hardening aluminium casting alloy for the production of thermally and mechanically stressed cast components, said alloy comprising: from 11.2 to 11.8 wt % silicon, from 0.6 to 0.9 wt % manganese, less than or equal to 0.15 wt % iron, from 0.7 to 1.0 wt % magnesium, from 1.8 to 2.0 wt % copper, from 0.5 to 1.0 wt % chromium, from 1.7 to 2.0 wt % zinc, from 0.08 to 0.25 wt % titanium, from 20 to 30 ppm boron, less than or equal to 2 wt % nickel, less than or equal to 1 wt % cobalt, optionally from 80 to 300 ppm strontium, and aluminium as the remainder with further elements and impurities due to production individually at most 0.05 wt %, in total at most 0.2 wt %.