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A magnesium alloy includes about 7.0 to about 8.0 wt % aluminum, about 0.45 wt % to about 0.90 wt % zinc, about 0.17 wt % to about 0.40 wt % manganese, about 0.50 wt % to about 1.5 wt % rare earth elements, about 0.00050 wt % to about 0.0015 wt % beryllium, and the rest being magnesium and unavoidable impurities. A method for making the magnesium alloy is also provided.