Material Properties Ductile Cast Iron Grade 80-55-06 admin May 20, 2016 Material Properties for Ductile Cast Iron Grade 80-55-06 Physical specifications of materials. Materials Ductile Cast Iron Description Grade 80-55-06 Density g/cc 7.15 lb/in^3 0.258 Hardness Brinell unless specified 192 Tensile Strength ultimate Mpa 559 Ksi 81.055 Yield Strength MPa 362 Ksi 52.49 Modulus of Elasticity Gpa 168 10^6 Psi 24.347826048 Poisson’s Ratio 0.31 %Elongation at break 11.2 %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