Automotive Grey Cast Iron vs. ACI-ASTM CB7Cu-1 Steel
Both automotive grey cast iron and ACI-ASTM CB7Cu-1 steel are iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is automotive grey cast iron and the bottom bar is ACI-ASTM CB7Cu-1 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 280 | |
| 300 to 420 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 9.6 to 14 | |
| 5.7 to 11 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 69 to 70 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 94 to 200 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 280 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1430 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 1500 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Conductivity, W/m-K | 41 to 43 | |
| 17 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 to 7.6 | |
| 2.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.1 | |
| 2.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 13 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 38 |
| Embodied Water, L/kg | 44 to 51 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 25 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 25 to 110 | |
| 1500 to 3590 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 11 to 12 | |
| 4.6 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 32 to 45 |