Material Properties AISI 1090 Steel Hot Rolled admin May 20, 2016 Material Properties for AISI 1090 Steel Hot Rolled Physical specifications of materials. Materials AISI 1090 Steel Description Hot Rolled Density g/cc 7.87 lb/in^3 0.284 Hardness Brinell unless specified 248 Tensile Strength ultimate Mpa 841 Ksi 121.945 Yield Strength MPa 460 Ksi 66.7 Modulus of Elasticity Gpa 200 10^6 Psi 28.9855072 Poisson’s Ratio 0.29 %Elongation at break 10 %Reduction of area 25 Izod Impact J 4 Ft-lb 2.9512 Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 51.9 Btu/ft-h-F 29.9999999958 Specific Heat Cpacity J/g-K 0.472 Btu/lb-F 0.11328 Coefficient of thermal expansion 1E-6/K 11.5 1E-6/F 6.3984962355 Electrical Resistivity Ohm-cm 0.0000174