C18200 Copper vs. C79600 Nickel Silver
Both C18200 copper and C79600 nickel silver are copper alloys. They have 45% of their average alloy composition in common.
For each property being compared, the top bar is C18200 copper and the bottom bar is C79600 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 11 to 40 | |
| 15 |
| Poisson's Ratio | 0.34 | |
| 0.3 |
| Rockwell B Hardness | 65 to 82 | |
| 70 |
| Shear Modulus, GPa | 44 | |
| 43 |
| Shear Strength, MPa | 210 to 320 | |
| 290 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 530 | |
| 480 |
| Tensile Strength: Yield (Proof), MPa | 97 to 450 | |
| 300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 130 |
| Melting Completion (Liquidus), °C | 1080 | |
| 930 |
| Melting Onset (Solidus), °C | 1070 | |
| 880 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 320 | |
| 36 |
| Thermal Expansion, µm/m-K | 18 | |
| 21 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 80 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 81 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 25 |
| Density, g/cm3 | 8.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.5 |
| Embodied Energy, MJ/kg | 41 | |
| 57 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 43 to 96 | |
| 63 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 40 to 860 | |
| 400 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.8 |
| Stiffness to Weight: Bending, points | 18 | |
| 20 |
| Strength to Weight: Axial, points | 9.6 to 16 | |
| 17 |
| Strength to Weight: Bending, points | 11 to 16 | |
| 17 |
| Thermal Diffusivity, mm2/s | 93 | |
| 12 |
| Thermal Shock Resistance, points | 11 to 18 | |
| 15 |
Alloy Composition
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| Chromium (Cr), % | 0.6 to 1.2 | |
| 0 |
| Copper (Cu), % | 98.6 to 99.4 | |
| 43.5 to 46.5 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 |
| Lead (Pb), % | 0 to 0.050 | |
| 0.8 to 1.2 |
| Manganese (Mn), % | 0 | |
| 1.5 to 2.5 |
| Nickel (Ni), % | 0 | |
| 9.0 to 11 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 38.3 to 45.2 |
| Residuals, % | 0 | |
| 0 to 0.5 |