| 摘要 |
The present invention relates to an alloy composition for casting and more specifically, to an alloy composition for Al-Zn-based casting for having high strength without heat treatment. The present invention provides an alloy composition for casting comprising: 0.44-0.50 wt% of copper (Cu), 0.42-0.49 wt% of silicon (Si), 0.90-1.14 wt% of magnesium (Mg), 0.40-0.51 wt% of iron (Fe), 0.15-0.18 wt% of manganese (Mn), 61.60-68.70 wt% of zinc (Zn), and residual aluminum. |
