Automotive Grey Cast Iron vs. ASTM A217 Cast Steel
Both automotive grey cast iron and ASTM A217 cast steel are iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is automotive grey cast iron and the bottom bar is ASTM A217 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 280 | |
| 160 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 9.6 to 14 | |
| 21 to 27 |
| Poisson's Ratio | 0.29 | |
| 0.28 to 0.29 |
| Shear Modulus, GPa | 69 to 70 | |
| 73 to 75 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 540 to 710 |
| Tensile Strength: Yield (Proof), MPa | 94 to 200 | |
| 270 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 250 to 270 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1450 to 1460 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 1410 to 1420 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 470 |
| Thermal Conductivity, W/m-K | 41 to 43 | |
| 26 to 50 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 to 7.6 | |
| 7.3 to 9.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.1 | |
| 8.4 to 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 2.4 to 7.0 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 1.5 to 2.1 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 20 to 28 |
| Embodied Water, L/kg | 44 to 51 | |
| 47 to 87 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 25 | |
| 110 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 25 to 110 | |
| 190 to 570 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 to 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 to 25 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 19 to 25 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 19 to 23 |
| Thermal Diffusivity, mm2/s | 11 to 12 | |
| 6.9 to 14 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 16 to 20 |