A heat resistant magnesium die casting alloy simultaneously improved in heat resistance and castability and expanded in range of application is provided. It comprises, includes, by wt %, the following composition: Al: over 6% to not more than 10 %, Ca: 1.8 to 5%, Sr: 0.05 to 1.0%, Mn: 0.1 to 0.6%, and Bal: Mg and unavoidable impurities, the ratio Ca/Al of the Ca content to the Al content being 0.3 to 0.5. To improve the corrosion resistance, 0.1 to 3% of a RE may also be added.
展开▼
