Material Properties AISI 1040 Steel Cold Drawn admin May 20, 2016 Material Properties for AISI 1040 Steel Cold Drawn Physical specifications of materials. Materials AISI 1040 Steel Description Cold Drawn Density g/cc 7.845 lb/in^3 0.283 Hardness Brinell unless specified 170 Tensile Strength ultimate Mpa 585 Ksi 84.825 Yield Strength MPa 515 Ksi 74.675 Modulus of Elasticity Gpa 200 10^6 Psi 28.9855072 Poisson’s Ratio 0.29 %Elongation at break 12 %Reduction of area 35 Izod Impact J 49 Ft-lb 36.1522 Fracture Toughness Mpa(m)^0.5 54 Ksi(in)^0.5 48.6 Thermal conductivity W/m-K 51.9 Btu/ft-h-F 29.9999999958 Specific Heat Cpacity J/g-K 0.486 Btu/lb-F 0.11664 Coefficient of thermal expansion 1E-6/K 11.3 1E-6/F 6.2872180401 Electrical Resistivity Ohm-cm 0.0000171