Patent ID: 8337644

Claim:
An aluminium alloy, comprising: magnesium 4.5 to 6.5% by weight, silicon 1.0 to 3.0% by weight, manganese 0.3 to 1.0% by weight, chromium 0.02 to 0.3% by weight, titanium 0.02 to 0.2% by weight, zirconium 0.02 to 0.2% by weight, rare earth metals 0.0050 to 1.6% by weight, wherein the rare earth metals comprise samarium, and at least one of cerium and lanthanum, iron max. 0.2% by weight, and the remainder aluminium; wherein the aluminium alloy in a cast state without thermal treatment has a tensile strength of at least 330 MPa.