Material Properties Ductile Cast Iron Grade 120-90-02 admin May 20, 2016 Material Properties for Ductile Cast Iron Grade 120-90-02 Physical specifications of materials. Materials Ductile Cast Iron Description Grade 120-90-02 Density g/cc 7.15 lb/in^3 0.258 Hardness Brinell unless specified 331 Tensile Strength ultimate Mpa 974 Ksi 141.23 Yield Strength MPa 864 Ksi 125.28 Modulus of Elasticity Gpa 164 10^6 Psi 23.768115904 Poisson’s Ratio 0.28 %Elongation at break 1.5 %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 36 Btu/ft-h-F 20.809248552 Specific Heat Cpacity J/g-K Btu/lb-F Coefficient of thermal expansion 1E-6/K 13 1E-6/F 7.233082701 Electrical Resistivity Ohm-cm 0.00006