Material Properties Diamond Natural admin May 20, 2016January 17, 2017 Material Properties for Diamond Natural Physical specifications of materials. Materials Diamond Description Natural Density g/cc 3.515 lb/in^3 0.127 Hardness Brinell unless specified 10(Mohs) Tensile Strength ultimate Mpa 1050 Ksi 152.25 Yield Strength MPa Ksi Modulus of Elasticity Gpa 950 10^6 Psi 137.6811592 Poisson’s Ratio 0.18 %Elongation at break %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 6.5 Ksi(in)^0.5 5.85 Thermal conductivity W/m-K 2000 Btu/ft-h-F 1156.069364 Specific Heat Cpacity J/g-K 0.4715 Btu/lb-F 0.11316 Coefficient of thermal expansion 1E-6/K 1.18 1E-6/F 0.65654135286 Electrical Resistivity Ohm-cm 1000000000000000