Material Properties Gray Cast Iron Astm Class 60 May 20, 2016 admin Material Properties for Gray Cast Iron Astm Class 60 Physical specifications of materials. Materials Gray Cast Iron Description Astm Class 60 Density g/cc 7.15 lb/in^3 0.258 Hardness Brinell unless specified 302 Tensile Strength ultimate Mpa 431 Ksi 62.495 Yield Strength MPa Ksi Modulus of Elasticity Gpa 152 10^6 Psi 22.028985472 Poisson’s Ratio 0.29 %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 50 Btu/ft-h-F 28.9017341 Specific Heat Cpacity J/g-K Btu/lb-F Coefficient of thermal expansion 1E-6/K 13.5 1E-6/F 7.5112781895 Electrical Resistivity Ohm-cm 0.00008 Auto Amazon Links: No products found.Auto Amazon Links: No products found.