An aluminum alloy includes 6 to 8.5 wt % of magnesium (Mg), 4 to 6 wt % of silicon (Si), 0.4 to 0.8 wt % of iron (Fe), 0.2 to 0.5 wt % of manganese (Mn), 0.01 to 0.1 wt % of copper (Cu), 0.05 to 0.15 wt % of titanium (Ti), and the remainder being aluminum (Al), and may be in use for die-casting electronic components or communication components which require weight reduction and high corrosion resistance.