C78200 Nickel Silver vs. C19700 Copper
Both C78200 nickel silver and C19700 copper are copper alloys. They have 65% of their average alloy composition in common.
For each property being compared, the top bar is C78200 nickel silver and the bottom bar is C19700 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 3.0 to 40 | |
| 2.4 to 13 |
| Poisson's Ratio | 0.32 | |
| 0.34 |
| Rockwell B Hardness | 65 to 90 | |
| 67 to 75 |
| Rockwell Superficial 30T Hardness | 63 to 75 | |
| 65 to 72 |
| Shear Modulus, GPa | 43 | |
| 43 |
| Shear Strength, MPa | 280 to 400 | |
| 240 to 300 |
| Tensile Strength: Ultimate (UTS), MPa | 370 to 630 | |
| 400 to 530 |
| Tensile Strength: Yield (Proof), MPa | 170 to 570 | |
| 330 to 520 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 200 |
| Melting Completion (Liquidus), °C | 1000 | |
| 1090 |
| Melting Onset (Solidus), °C | 970 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 48 | |
| 250 |
| Thermal Expansion, µm/m-K | 19 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 86 to 88 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 12 | |
| 87 to 89 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 28 | |
| 30 |
| Density, g/cm3 | 8.4 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 2.6 |
| Embodied Energy, MJ/kg | 52 | |
| 41 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 120 | |
| 12 to 49 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 1440 | |
| 460 to 1160 |
| Stiffness to Weight: Axial, points | 7.4 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 12 to 21 | |
| 12 to 16 |
| Strength to Weight: Bending, points | 14 to 19 | |
| 14 to 16 |
| Thermal Diffusivity, mm2/s | 15 | |
| 73 |
| Thermal Shock Resistance, points | 12 to 21 | |
| 14 to 19 |
Alloy Composition
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| Cobalt (Co), % | 0 | |
| 0 to 0.050 |
| Copper (Cu), % | 63 to 67 | |
| 97.4 to 99.59 |
| Iron (Fe), % | 0 to 0.35 | |
| 0.3 to 1.2 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 to 0.050 |
| Magnesium (Mg), % | 0 | |
| 0.010 to 0.2 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 0.050 |
| Nickel (Ni), % | 7.0 to 9.0 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 | |
| 0.1 to 0.4 |
| Tin (Sn), % | 0 | |
| 0 to 0.2 |
| Zinc (Zn), % | 20.2 to 28.5 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.2 |