Aluminium alloy for high presure die casting

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An aluminium alloy which comprises (by weight) : 3.0-12.0 % magnesium, 0.5-5.0 % iron, at most 1.5 % rare earth element(s) (including Sc and/or Y), at most 2.5 % manganese, at most 100 ppm beryllium, at most 0.3 wt.% Si and other alloying elements and impurities 0-0.4% each and less than 0.5 % in total, with the balance being aluminium. The alloy can be used to make high pressure die cast components which in the as-cast condition have a 0.2 % proof stress of more than 150 MPa, a UTS of more than 290 MPa and an elongation of at least 6 %. The alloy can be used to make engine components, vehicle wheels, steering wheels and columns, a vehicle frame and chassis members, a gear box and powertrain components.