Material Properties Graphite Carbon admin May 20, 2016January 17, 2017 Material Properties for Graphite Carbon Physical specifications of materials. Materials Graphite Carbon Description Density g/cc 2.25 lb/in^3 0.0813 Hardness Brinell unless specified Tensile Strength ultimate Mpa Ksi Yield Strength MPa Ksi Modulus of Elasticity Gpa 10^6 Psi Poisson’s Ratio %Elongation at break %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 24 Btu/ft-h-F 13.872832368 Specific Heat Cpacity J/g-K 0.69 Btu/lb-F 0.1656 Coefficient of thermal expansion 1E-6/K 2.4 1E-6/F 1.3353383448 Electrical Resistivity Ohm-cm 0.006