PERMANENT MOULD CAST MAGNESIUM ALLOY

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A magnesium based alloy consisting of, by weight : 1.2 - 1.4% neodymium; 0.5 - 0.8% rare earth element(s) with atomic number(s) 57 - 71, other than neodymium; 0.3 - 0.7% zinc; 0.3 - 1% zirconium; 0 - 0.5% yttrium; 0 - 0.3% manganese; 0 - 0.15% aluminium; 0 - 0.1% oxidation inhibiting element(s); and the balance being magnesium except for incidental impurities.