Density2.73 g/cm3 (170 lb/ft3)Elastic (Young's, Tensile) Modulus69 GPa (10.0 x 106 psi)Electrical Conductivity41 % IACSElongation at Break9 %Fatigue Strength (Endurance Limit)60 MPa (8.7 x 103 psi)Fracture Toughness62 MPa-m1/2Melting Onset (Solidus)643 °C (1190 °F)Shear Modulus26 GPa (3.8 106 psi)Shear Strength97 MPa (14 x 103 psi)Specific Heat Capacity890 J/kg-KStrength to Weight Ratio59 kN-m/kgTensile Strength: Ultimate (UTS)160 MPa (23 x 103 psi)Tensile Strength: Yield (Proof)140 MPa (20 x 103 psi)Thermal Conductivity160 W/m-KThermal Diffusivity66Thermal Expansion23.2 µm/m-K