Automotive Grey Cast Iron vs. C72700 Copper-nickel
Automotive grey cast iron belongs to the iron alloys classification, while C72700 copper-nickel belongs to the copper alloys. There are 27 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 C72700 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 120 |
| Elongation at Break, % | 9.6 to 14 | |
| 4.0 to 36 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 69 to 70 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 460 to 1070 |
| Tensile Strength: Yield (Proof), MPa | 94 to 200 | |
| 580 to 1060 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 210 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1100 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 380 |
| Thermal Conductivity, W/m-K | 41 to 43 | |
| 54 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 to 7.6 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.1 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 36 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 4.0 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 62 |
| Embodied Water, L/kg | 44 to 51 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 25 | |
| 20 to 380 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 25 to 110 | |
| 1420 to 4770 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 25 | |
| 19 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 14 to 34 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 15 to 26 |
| Thermal Diffusivity, mm2/s | 11 to 12 | |
| 16 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 16 to 38 |