Ductile Cast Iron vs. Austenitic Grey Cast Iron
Both ductile cast iron and austenitic grey cast iron are iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is ductile cast iron and the bottom bar is austenitic grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 310 | |
| 110 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 180 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.29 to 0.3 |
| Shear Modulus, GPa | 64 to 70 | |
| 69 to 72 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 150 to 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 to 350 |
| Melting Completion (Liquidus), °C | 1160 | |
| 1340 to 1400 |
| Melting Onset (Solidus), °C | 1120 | |
| 1290 to 1350 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 470 to 490 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 to 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 14 to 24 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 7.7 to 8.1 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 3.1 to 4.7 |
| Embodied Energy, MJ/kg | 21 | |
| 43 to 65 |
| Embodied Water, L/kg | 43 | |
| 93 to 120 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 23 to 25 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 5.3 to 8.2 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 7.9 to 11 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 4.5 to 6.5 |