力学性能 化学成份(不低于)序号合金牌号合金代号布氏硬度HB5硅铜锰镁铁镍钛锌铅锡铝抗拉强度101YZA1Sil2YL1021382YZA1Si10MgYL10410.5YZA1Si12Cu211YL108137.YZA1Si9Cu4YL1129.5YZA1Si11Cu39.6YL1131216YL117180.87YZA1Mg5SilYL3021.3≤0.10.45.550.13.≤0.50.6.5≤1.2≤0.2≤0.2余2202700.45≤1.2≤0.1≤0.1≤1.2余220<141.5≤0.5≤0.3≤1.2≤0.5≤1.0≤0.1≤0.1余23018023≤0.5≤0.3≤1.2≤0.5≤1.2≤0.1≤0.1余2401850.911≤0.30.50.30.30.4≤1.0≤0.05≤1.0≤0.05≤0.01余2401900.20.17≤1.0≤0.3≤0.05≤0.01余220270≤0.6≤0.6≤0.05≤1.2≤0.3余220260伸长度/250/30356YZA1Si17Cu5Mg
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