C22600 Bronze vs. C78200 Nickel Silver
Both C22600 bronze and C78200 nickel silver are copper alloys. They have 78% of their average alloy composition in common.
For each property being compared, the top bar is C22600 bronze and the bottom bar is C78200 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 2.5 to 33 | |
| 3.0 to 40 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Rockwell B Hardness | 46 to 85 | |
| 65 to 90 |
| Rockwell Superficial 30T Hardness | 51 to 77 | |
| 63 to 75 |
| Shear Modulus, GPa | 42 | |
| 43 |
| Shear Strength, MPa | 220 to 320 | |
| 280 to 400 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 570 | |
| 370 to 630 |
| Tensile Strength: Yield (Proof), MPa | 270 to 490 | |
| 170 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 160 |
| Melting Completion (Liquidus), °C | 1040 | |
| 1000 |
| Melting Onset (Solidus), °C | 1000 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 170 | |
| 48 |
| Thermal Expansion, µm/m-K | 18 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 40 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 42 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 28 | |
| 28 |
| Density, g/cm3 | 8.7 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.3 |
| Embodied Energy, MJ/kg | 42 | |
| 52 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 14 to 100 | |
| 18 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 1070 | |
| 130 to 1440 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 11 to 18 | |
| 12 to 21 |
| Strength to Weight: Bending, points | 12 to 18 | |
| 14 to 19 |
| Thermal Diffusivity, mm2/s | 52 | |
| 15 |
| Thermal Shock Resistance, points | 11 to 19 | |
| 12 to 21 |
Alloy Composition
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| Copper (Cu), % | 86 to 89 | |
| 63 to 67 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.35 |
| Lead (Pb), % | 0 to 0.050 | |
| 1.5 to 2.5 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 7.0 to 9.0 |
| Zinc (Zn), % | 10.7 to 14 | |
| 20.2 to 28.5 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.5 |