Ductile Iron

Material: Ductile Iron
Composition: Fe/3.2-4.1%C/1.8-2.8%Si/<0.8%Mn/<0.1%P/<0.03%S
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.0077 0.008 m3/kmol 469.883 488.19 in3/kmol
Density 7.05 7.25 Mg/m3 440.117 452.603 lb/ft3
Energy Content 60 72 MJ/kg 6500.32 7800.38 kcal/lb
Bulk Modulus 119 137 GPa 17.2595 19.8702 106 psi
Compressive Strength 229 799 MPa 33.2136 115.885 ksi
Ductility 0.02 0.29 0.02 0.29 NULL
Elastic Limit 215 790 MPa 31.1831 114.58 ksi
Endurance Limit 180 330 MPa 26.1068 47.8624 ksi
Fracture Toughness 22 54 MPa.m1/2 20.021 49.1425 ksi.in1/2
Hardness 1150 3200 MPa 166.793 464.121 ksi
Loss Coefficient 0.0006 0.0022 0.0006 0.0022 NULL
Modulus of Rupture 215 790 MPa 31.1831 114.58 ksi
Poisson's Ratio 0.27 0.28 0.27 0.28 NULL
Shear Modulus 64 71 GPa 9.28241 10.2977 106 psi
Tensile Strength 350 1000 MPa 50.7632 145.038 ksi
Young's Modulus 165 180 GPa 23.9312 26.1068 106 psi
Glass Temperature K °F
Latent Heat of Fusion 270 275 kJ/kg 116.079 118.228 BTU/lb
Maximum Service Temperature 623 723 K 661.73 841.73 °F
Melting Point 1403 1523 K 2065.73 2281.73 °F
Minimum Service Temperature 123 393 K -238.27 247.73 °F
Specific Heat 460 495 J/kg.K 0.355975 0.38306 BTU/lb.F
Thermal Conductivity 29 44 W/m.K 54.289 82.3695 BTU.ft/h.ft2.F
Thermal Expansion 10 12.5 10-6/K 18 22.5 10-6/°F
Breakdown Potential MV/m V/mil
Dielectric Constant NULL
Resistivity 49 56 10-8 ohm.m 49 56 10-8 ohm.m
Environmental Properties
Resistance Factors
1=Poor 5=Excellent
Flammability 5
Fresh Water 4
Organic Solvents 5
Oxidation at 500C 4
Sea Water 3
Strong Acid 2
Strong Alkalis 3
UV 5
Wear 5
Weak Acid 4
Weak Alkalis 5