C18700 Copper vs. Automotive Grey Cast Iron
C18700 copper belongs to the copper alloys classification, while automotive grey cast iron belongs to the iron 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 C18700 copper and the bottom bar is automotive grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 180 |
| Elongation at Break, % | 9.0 to 9.6 | |
| 9.6 to 14 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 43 | |
| 69 to 70 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 330 | |
| 140 to 290 |
| Tensile Strength: Yield (Proof), MPa | 230 to 250 | |
| 94 to 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 260 to 280 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1380 to 1390 |
| Melting Onset (Solidus), °C | 950 | |
| 1340 to 1350 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 490 |
| Thermal Conductivity, W/m-K | 380 | |
| 41 to 43 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 to 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 98 | |
| 7.4 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 99 | |
| 8.8 to 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 1.9 to 3.0 |
| Density, g/cm3 | 9.0 | |
| 7.5 to 7.6 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.5 to 1.7 |
| Embodied Energy, MJ/kg | 41 | |
| 21 to 24 |
| Embodied Water, L/kg | 310 | |
| 44 to 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 29 | |
| 18 to 25 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 240 to 280 | |
| 25 to 110 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 25 |
| Strength to Weight: Axial, points | 9.0 to 10 | |
| 5.2 to 11 |
| Strength to Weight: Bending, points | 11 to 12 | |
| 8.0 to 13 |
| Thermal Diffusivity, mm2/s | 110 | |
| 11 to 12 |
| Thermal Shock Resistance, points | 10 to 12 | |
| 4.2 to 8.6 |