Material Properties AISI 1090 Steel Annealed admin May 20, 2016 Material Properties for AISI 1090 Steel Annealed Physical specifications of materials. Materials AISI 1090 Steel Description Annealed Density g/cc 7.85 lb/in^3 0.284 Hardness Brinell unless specified 197 Tensile Strength ultimate Mpa 696 Ksi 100.92 Yield Strength MPa 540 Ksi 78.3 Modulus of Elasticity Gpa 205 10^6 Psi 29.71014488 Poisson’s Ratio 0.29 %Elongation at break 10 %Reduction of area 40 Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 49.8 Btu/ft-h-F 28.7861271636 Specific Heat Cpacity J/g-K 0.472 Btu/lb-F 0.11328 Coefficient of thermal expansion 1E-6/K 1E-6/F Electrical Resistivity Ohm-cm 0.0000174