Automotive Malleable Cast Iron vs. C72900 Copper-nickel
Automotive malleable cast iron belongs to the iron alloys classification, while C72900 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 malleable cast iron and the bottom bar is C72900 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 120 |
| Elongation at Break, % | 1.0 to 10 | |
| 6.0 to 20 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 70 | |
| 45 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 720 | |
| 870 to 1080 |
| Tensile Strength: Yield (Proof), MPa | 220 to 590 | |
| 700 to 920 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 210 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1120 |
| Melting Onset (Solidus), °C | 1370 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 380 |
| Thermal Conductivity, W/m-K | 41 | |
| 29 |
| Thermal Expansion, µm/m-K | 14 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 7.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 39 |
| Density, g/cm3 | 7.6 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 4.6 |
| Embodied Energy, MJ/kg | 20 | |
| 72 |
| Embodied Water, L/kg | 45 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 6.8 to 30 | |
| 49 to 210 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 950 | |
| 2030 to 3490 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 25 | |
| 19 |
| Strength to Weight: Axial, points | 13 to 26 | |
| 27 to 34 |
| Strength to Weight: Bending, points | 14 to 24 | |
| 23 to 27 |
| Thermal Diffusivity, mm2/s | 11 | |
| 8.6 |
| Thermal Shock Resistance, points | 9.9 to 21 | |
| 31 to 38 |
Alloy Composition
| Carbon (C), % | 2.2 to 2.9 | |
| 0 |
| Copper (Cu), % | 0 | |
| 74.1 to 78 |
| Iron (Fe), % | 93.6 to 96.7 | |
| 0 to 0.5 |
| Lead (Pb), % | 0 | |
| 0 to 0.020 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.15 |
| Manganese (Mn), % | 0.15 to 1.3 | |
| 0 to 0.3 |
| Nickel (Ni), % | 0 | |
| 14.5 to 15.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0.020 to 0.15 | |
| 0 |
| Silicon (Si), % | 0.9 to 1.9 | |
| 0 |
| Sulfur (S), % | 0.020 to 0.2 | |
| 0 |
| Tin (Sn), % | 0 | |
| 7.5 to 8.5 |
| Zinc (Zn), % | 0 | |
| 0 to 0.5 |
| Residuals, % | 0 | |
| 0 to 0.3 |