铜Cu :0.15~0.4
锰Mn :0.15
镁Mg :0.8~1.2
锌Zn :0.25
铬Cr :0.04~0.35
钛Ti :0.15
硅Si :0.4~0.8
铁Fe :0.7
铝Al :余量
6061的极限抗拉强度为124 MPa
受拉屈服强度 55.2 MPa
弹性系数68.9 GPa
弯曲极限强度228 MPa
Bending Yield Strength 103 MPa