Automotive Malleable Cast Iron vs. Automotive Grey Cast Iron
Both automotive malleable cast iron and automotive grey cast iron are iron alloys.
For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is automotive grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 130 to 290 | |
| 160 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 180 |
| Elongation at Break, % | 1.0 to 10 | |
| 9.6 to 14 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 70 | |
| 69 to 70 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 720 | |
| 140 to 290 |
| Tensile Strength: Yield (Proof), MPa | 220 to 590 | |
| 94 to 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 260 to 280 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1380 to 1390 |
| Melting Onset (Solidus), °C | 1370 | |
| 1340 to 1350 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 490 |
| Thermal Conductivity, W/m-K | 41 | |
| 41 to 43 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 to 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 7.4 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 8.8 to 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 1.9 to 3.0 |
| Density, g/cm3 | 7.6 | |
| 7.5 to 7.6 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.5 to 1.7 |
| Embodied Energy, MJ/kg | 20 | |
| 21 to 24 |
| Embodied Water, L/kg | 45 | |
| 44 to 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 6.8 to 30 | |
| 18 to 25 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 950 | |
| 25 to 110 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 13 to 26 | |
| 5.2 to 11 |
| Strength to Weight: Bending, points | 14 to 24 | |
| 8.0 to 13 |
| Thermal Diffusivity, mm2/s | 11 | |
| 11 to 12 |
| Thermal Shock Resistance, points | 9.9 to 21 | |
| 4.2 to 8.6 |