Element Content (%) Iron, Fe 97.395-98.07 Manganese, Mn 0.700-0.900 Chromium, Cr 0.700-0.900 Carbon, C 0.380-0.430 Silicon, Si 0.150-0.300 Sulfur, S 0.0400 Phosphorous, P 0.0350 Physical Properties Properties Metric Imperial Density 7.85 g/cm3 0.284 lb/in Mechanical Properties Properties Metric Imperial Tensile strength 570 MPa 82700 psi Yield strength 295 MPa 42800 psi Elastic modulus 190-210 GPa 27557-30458 ksi Bulk modulus (typical for steel) 140GPa 20300 ksi Shear modulus (typical for steel) 80 GPa 11600 ksi Poissonâ??s ratio 0.27-0.30 0.27-0.30 Izod Impact 41.0 J 30.2 ft.lb Hardness, Brinell 167 167 Hardness, Knoop (converted from Brinell hardness) 188 188 Hardness, Rockwell B (converted from Brinell hardness) 85 85 Hardness, Vickers (converted from Brinell hardness) 175 175
