Ductile Cast Iron vs. ASTM A588 Steel
Both ductile cast iron and ASTM A588 steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is ductile cast iron and the bottom bar is ASTM A588 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 310 | |
| 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 190 |
| Elongation at Break, % | 2.1 to 20 | |
| 22 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 64 to 70 | |
| 73 |
| Shear Strength, MPa | 420 to 800 | |
| 350 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 550 |
| Tensile Strength: Yield (Proof), MPa | 310 to 670 | |
| 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 to 260 |
| Maximum Temperature: Mechanical, °C | 290 | |
| 410 |
| Melting Completion (Liquidus), °C | 1160 | |
| 1460 |
| Melting Onset (Solidus), °C | 1120 | |
| 1410 to 1420 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 470 |
| Thermal Conductivity, W/m-K | 31 to 36 | |
| 43 to 44 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.4 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 2.3 to 2.5 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.5 to 1.6 |
| Embodied Energy, MJ/kg | 21 | |
| 20 to 22 |
| Embodied Water, L/kg | 43 | |
| 50 to 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 80 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 1330 | |
| 400 |
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 20 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 19 |
| Thermal Diffusivity, mm2/s | 8.9 to 10 | |
| 12 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 16 |