HOT-RESISTANT ALUMINIUM ALLOY Russian patent published in 2012 - IPC C22C21/04 

FIELD: metallurgy.

SUBSTANCE: aluminium cast alloy hardened by cold deforming with good thermal stability for manufacturing of cast parts that are affected by thermal and mechanical stresses contains the following components: silicium from 11.0 to 12.0 wt %, magnesium from 0.7 to 2.0 wt %, manganese from 0.1 to 1.0 wt %, ferrum not more than 1 wt %, cuprum not more than 2 wt %, nickel not more than 2 wt %, chrome not more than 1 wt %, cobalt not more than 1 wt %, zinc not more than 2 wt %, titanium not more than 0.25 wt %, boron up to 40 parts per million, not obligatory, strontium from 80 to 300 parts per million and aluminium with other elements and impurities generated in the manufacturing process, each of which amounts not more than 0.05 wt %, totally not more than 0.2 wt % - the rest.

EFFECT: obtained aluminium alloy has good thermal stability, note that parts from this alloy have high strength after hardening at cold deformation.

8 cl, 7 tbl