Automotive Grey Cast Iron vs. Austenitic Grey Cast Iron
Both automotive grey 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 (9, in this case) are not shown.
For each property being compared, the top bar is automotive grey cast iron and the bottom bar is austenitic grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 280 | |
| 110 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 180 |
| Poisson's Ratio | 0.29 | |
| 0.29 to 0.3 |
| Shear Modulus, GPa | 69 to 70 | |
| 69 to 72 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 150 to 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 280 to 350 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1340 to 1400 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 1290 to 1350 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 470 to 490 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 13 to 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 14 to 24 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 7.7 to 8.1 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 3.1 to 4.7 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 43 to 65 |
| Embodied Water, L/kg | 44 to 51 | |
| 93 to 120 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 to 25 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 5.3 to 8.2 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 7.9 to 11 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 4.5 to 6.5 |