Automotive Grey Cast Iron vs. Grade 250 Maraging Steel
Both automotive grey cast iron and grade 250 maraging steel are iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is automotive grey cast iron and the bottom bar is grade 250 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 9.6 to 14 | |
| 7.3 to 17 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 69 to 70 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 970 to 1800 |
| Tensile Strength: Yield (Proof), MPa | 94 to 200 | |
| 660 to 1740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 270 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1480 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 450 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 32 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 4.9 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 65 |
| Embodied Water, L/kg | 44 to 51 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 25 | |
| 130 to 150 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 33 to 61 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 26 to 40 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 29 to 54 |