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