化***成份分析(ChemicalCompositionLimitOfAluminumAlloys)合金牌号硅Si铁Fe铜Cu锰Mn镁Mg铬Cr锌Zn钛Ti其它铝每个总计***小值7A090.40.51.2-2.00.32.1-2.90.18-0.285.1-6.10.20.050.15余量机械性能分析(TypicalMechanicalProperties)铝合***号及状态拉伸强度屈服强度硬度延伸率(25°CMPa)(25°CMPa)500kg力10mm球1.6mm(1/16in)厚度ALLOYANDTEMPERUltimateTensileStrengthTensileYieldStrengthHardnessElongation7A09-T6/T65157250315011物理性能分析(TypicalPhysicalProperties)日顺铝合***号及状态热膨胀系数(20-100℃)μm/m·k熔点范围(℃)电导率20℃(68℉)(%IACS)电阻率20℃(68℉)Ωmm2/mALLOYANDTEMPER***erageCoefficientOfThermalExpansionApproximateMeltingRangeElectricalConductivityElectricalResistivity7A09-T65123.6475-635330.0515)