C71000 Copper-nickel vs. C76200 Nickel Silver
Both C71000 copper-nickel and C76200 nickel silver are copper alloys. They have 72% of their average alloy composition in common.
For each property being compared, the top bar is C71000 copper-nickel and the bottom bar is C76200 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 130 | |
| 120 |
| Poisson's Ratio | 0.33 | |
| 0.31 |
| Rockwell B Hardness | 59 to 85 | |
| 28 to 99 |
| Rockwell Superficial 30T Hardness | 56 to 73 | |
| 66 to 91 |
| Shear Modulus, GPa | 49 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 320 to 560 | |
| 390 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 240 | |
| 170 |
| Melting Completion (Liquidus), °C | 1200 | |
| 1030 |
| Melting Onset (Solidus), °C | 1150 | |
| 980 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 390 |
| Thermal Conductivity, W/m-K | 43 | |
| 45 |
| Thermal Expansion, µm/m-K | 15 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.5 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.6 | |
| 9.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 29 |
| Density, g/cm3 | 8.9 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 4.3 | |
| 3.6 |
| Embodied Energy, MJ/kg | 63 | |
| 57 |
| Embodied Water, L/kg | 290 | |
| 310 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.2 | |
| 7.8 |
| Stiffness to Weight: Bending, points | 19 | |
| 20 |
| Strength to Weight: Axial, points | 10 to 18 | |
| 13 to 27 |
| Strength to Weight: Bending, points | 12 to 17 | |
| 14 to 23 |
| Thermal Diffusivity, mm2/s | 12 | |
| 14 |
| Thermal Shock Resistance, points | 12 to 20 | |
| 13 to 26 |
Alloy Composition
| Copper (Cu), % | 73.5 to 80.5 | |
| 57 to 61 |
| Iron (Fe), % | 0.5 to 1.0 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 19 to 23 | |
| 11 to 13.5 |
| Zinc (Zn), % | 0 to 1.0 | |
| 24.2 to 32 |
| Residuals, % | 0 | |
| 0 to 0.5 |