Automotive Grey Cast Iron vs. SAE-AISI D4 Steel
Both automotive grey cast iron and SAE-AISI D4 steel are iron alloys. There are 26 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 automotive grey cast iron and the bottom bar is SAE-AISI D4 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 9.6 to 14 | |
| 8.4 to 15 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 69 to 70 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 760 to 2060 |
| Tensile Strength: Yield (Proof), MPa | 94 to 200 | |
| 470 to 1540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 270 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1430 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Conductivity, W/m-K | 41 to 43 | |
| 31 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 to 7.6 | |
| 4.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.1 | |
| 5.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 8.0 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 3.3 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 49 |
| Embodied Water, L/kg | 44 to 51 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 25 | |
| 100 to 160 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 27 to 75 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 24 to 47 |
| Thermal Diffusivity, mm2/s | 11 to 12 | |
| 8.3 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 23 to 63 |