Nickel 725 vs. C70620 Copper-nickel
Nickel 725 belongs to the nickel alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is nickel 725 and the bottom bar is C70620 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 120 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 78 | |
| 46 |
| Tensile Strength: Ultimate (UTS), MPa | 860 | |
| 300 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 220 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 220 |
| Melting Completion (Liquidus), °C | 1340 | |
| 1120 |
| Melting Onset (Solidus), °C | 1270 | |
| 1060 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 390 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 33 |
| Density, g/cm3 | 8.5 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 13 | |
| 3.4 |
| Embodied Energy, MJ/kg | 190 | |
| 51 |
| Embodied Water, L/kg | 270 | |
| 300 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 23 | |
| 19 |
| Strength to Weight: Axial, points | 28 | |
| 9.3 to 18 |
| Strength to Weight: Bending, points | 24 | |
| 11 to 17 |
| Thermal Shock Resistance, points | 23 | |
| 10 to 20 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.35 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.050 |
| Chromium (Cr), % | 19 to 22.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 86.5 to 90 |
| Iron (Fe), % | 2.3 to 15.3 | |
| 1.0 to 1.8 |
| Lead (Pb), % | 0 | |
| 0 to 0.020 |
| Manganese (Mn), % | 0 to 0.35 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 7.0 to 9.5 | |
| 0 |
| Nickel (Ni), % | 55 to 59 | |
| 9.0 to 11 |
| Niobium (Nb), % | 2.8 to 4.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.2 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.020 |
| Titanium (Ti), % | 1.0 to 1.7 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.5 |
| Residuals, % | 0 | |
| 0 to 0.5 |