C97800 Nickel Silver vs. C87700 Bronze
Both C97800 nickel silver and C87700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 70% of their average alloy composition in common.
For each property being compared, the top bar is C97800 nickel silver and the bottom bar is C87700 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 130 | |
| 110 |
| Elongation at Break, % | 10 | |
| 3.6 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 48 | |
| 42 |
| Tensile Strength: Ultimate (UTS), MPa | 370 | |
| 300 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 230 | |
| 180 |
| Melting Completion (Liquidus), °C | 1180 | |
| 980 |
| Melting Onset (Solidus), °C | 1140 | |
| 900 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 400 |
| Thermal Conductivity, W/m-K | 25 | |
| 120 |
| Thermal Expansion, µm/m-K | 16 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.0 | |
| 45 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.1 | |
| 48 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 40 | |
| 29 |
| Density, g/cm3 | 8.8 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 2.7 |
| Embodied Energy, MJ/kg | 76 | |
| 45 |
| Embodied Water, L/kg | 330 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 | |
| 8.6 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 | |
| 64 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 12 | |
| 9.8 |
| Strength to Weight: Bending, points | 13 | |
| 12 |
| Thermal Diffusivity, mm2/s | 7.3 | |
| 34 |
| Thermal Shock Resistance, points | 13 | |
| 11 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 |
| Antimony (Sb), % | 0 to 0.2 | |
| 0 to 0.1 |
| Copper (Cu), % | 64 to 67 | |
| 87.5 to 90.5 |
| Iron (Fe), % | 0 to 1.5 | |
| 0 to 0.5 |
| Lead (Pb), % | 1.0 to 2.5 | |
| 0 to 0.090 |
| Manganese (Mn), % | 0 | |
| 0 to 0.8 |
| Nickel (Ni), % | 24 to 27 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 to 0.050 | |
| 0 to 0.15 |
| Silicon (Si), % | 0 to 0.15 | |
| 2.5 to 3.5 |
| Sulfur (S), % | 0 to 0.080 | |
| 0 |
| Tin (Sn), % | 4.0 to 5.5 | |
| 0 to 2.0 |
| Zinc (Zn), % | 1.0 to 4.0 | |
| 7.0 to 9.0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.8 |