Density2.66 g/cm3 (166 lb/ft3)Elastic (Young's, Tensile) Modulus69 GPa (10 x 106 psi)Elongation at Break13 %Specific Heat Capacity880 J/kg-KStrength to Weight Ratio158 kN-m/kgTensile Strength: Ultimate (UTS)420 MPa (61 x 103 psi)Tensile Strength: Yield (Proof)290 MPa (42 x 103 psi)Thermal Expansion22.1 µm/m-KPhysical Properties Metric English Comments Density 2.66 g/cc 0.0961 lb/in³AA;Typical Component Elements Properties Metric English Comments Aluminum, Al 89.8 - 94 %89.8 - 94 %As remainder Chromium, Cr