C71000 Copper-nickel vs. C75700 Nickel Silver
Both C71000 copper-nickel and C75700 nickel silver are copper alloys. They have 78% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is C71000 copper-nickel and the bottom bar is C75700 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 130 | |
| 120 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 49 | |
| 45 |
| Tensile Strength: Ultimate (UTS), MPa | 320 to 560 | |
| 590 to 610 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 240 | |
| 180 |
| Melting Completion (Liquidus), °C | 1200 | |
| 1040 |
| Melting Onset (Solidus), °C | 1150 | |
| 990 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 390 |
| Thermal Conductivity, W/m-K | 43 | |
| 40 |
| Thermal Expansion, µm/m-K | 15 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.5 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.6 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 30 |
| Density, g/cm3 | 8.9 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 4.3 | |
| 3.6 |
| Embodied Energy, MJ/kg | 63 | |
| 56 |
| Embodied Water, L/kg | 290 | |
| 310 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.2 | |
| 7.8 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 10 to 18 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 12 to 17 | |
| 19 |
| Thermal Diffusivity, mm2/s | 12 | |
| 12 |
| Thermal Shock Resistance, points | 12 to 20 | |
| 22 to 23 |
Alloy Composition
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| Copper (Cu), % | 73.5 to 80.5 | |
| 63.5 to 66.5 |
| Iron (Fe), % | 0.5 to 1.0 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 19 to 23 | |
| 11 to 13 |
| Zinc (Zn), % | 0 to 1.0 | |
| 19.2 to 25.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |