Ductile Cast Iron vs. SAE-AISI D2 Steel
Both ductile cast iron and SAE-AISI D2 steel are iron alloys. They have 86% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is ductile cast iron and the bottom bar is SAE-AISI D2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 190 |
| Elongation at Break, % | 2.1 to 20 | |
| 5.0 to 16 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.28 |
| Shear Modulus, GPa | 64 to 70 | |
| 75 |
| Shear Strength, MPa | 420 to 800 | |
| 460 to 1160 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 760 to 2000 |
| Tensile Strength: Yield (Proof), MPa | 310 to 670 | |
| 470 to 1510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 270 |
| Melting Completion (Liquidus), °C | 1160 | |
| 1440 |
| Melting Onset (Solidus), °C | 1120 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Conductivity, W/m-K | 31 to 36 | |
| 31 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 4.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.4 | |
| 5.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 8.0 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 3.4 |
| Embodied Energy, MJ/kg | 21 | |
| 50 |
| Embodied Water, L/kg | 43 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 80 | |
| 92 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 1330 | |
| 570 to 5940 |
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 25 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 27 to 72 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 24 to 46 |
| Thermal Diffusivity, mm2/s | 8.9 to 10 | |
| 8.3 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 25 to 67 |
Alloy Composition
| Carbon (C), % | 3.0 to 3.5 | |
| 1.4 to 1.6 |
| Chromium (Cr), % | 0 | |
| 11 to 13 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 81.3 to 86.9 |
| Manganese (Mn), % | 0 | |
| 0 to 0.6 |
| Molybdenum (Mo), % | 0 | |
| 0.7 to 1.2 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.080 | |
| 0 to 0.030 |
| Silicon (Si), % | 1.5 to 2.8 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0 to 1.1 |