阅读说明：本技术 一种铸造用铝合金材料 (Aluminum alloy material for casting ) 是由 叶光华 叶天佑 于 2021-01-06 设计创作，主要内容包括：本发明公开了一种铸造用铝合金材料,包括所述铸造用铝合金材料质量百分比的组成比例：Si7.2-7.8％,Fe≤0.45％,Cu 3.1-3.6％,Mn 0.2-0.5％,Mg 0.25-0.4％,Zn 0.2-0.3％,Cr≤0.04％,Ni 0.1-0.25％,Ti 0.12-0.2％,Sr 0.004-0.01％,Pb≤0.1％,余量为Al和不可避免的杂质。本发明能够合理解决现有技术中铸造铝合金的综合力学性能差和配方成本高的问题。(The invention discloses an aluminum alloy material for casting, which comprises the following components in percentage by mass: 7.2 to 7.8 percent of Si, less than or equal to 0.45 percent of Fe, 3.1 to 3.6 percent of Cu, 0.2 to 0.5 percent of Mn, 0.25 to 0.4 percent of Mg, 0.2 to 0.3 percent of Zn, less than or equal to 0.04 percent of Cr, 0.1 to 0.25 percent of Ni, 0.12 to 0.2 percent of Ti, 0.004 to 0.01 percent of Sr, less than or equal to 0.1 percent of Pb, and the balance of Al and inevitable impurities. The invention can reasonably solve the problems of poor comprehensive mechanical property and high formula cost of cast aluminum alloy in the prior art.)