C67400 Bronze vs. C79600 Nickel Silver
Both C67400 bronze and C79600 nickel silver are copper alloys. They have 83% of their average alloy composition in common.
For each property being compared, the top bar is C67400 bronze and the bottom bar is C79600 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 22 to 28 | |
| 15 |
| Poisson's Ratio | 0.31 | |
| 0.3 |
| Rockwell B Hardness | 78 to 85 | |
| 70 |
| Shear Modulus, GPa | 41 | |
| 43 |
| Shear Strength, MPa | 310 to 350 | |
| 290 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 610 | |
| 480 |
| Tensile Strength: Yield (Proof), MPa | 250 to 370 | |
| 300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 130 |
| Melting Completion (Liquidus), °C | 890 | |
| 930 |
| Melting Onset (Solidus), °C | 870 | |
| 880 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 390 |
| Thermal Conductivity, W/m-K | 100 | |
| 36 |
| Thermal Expansion, µm/m-K | 21 | |
| 21 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 23 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 26 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 25 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.5 |
| Embodied Energy, MJ/kg | 48 | |
| 57 |
| Embodied Water, L/kg | 330 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 63 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 660 | |
| 400 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 7.8 |
| Stiffness to Weight: Bending, points | 20 | |
| 20 |
| Strength to Weight: Axial, points | 17 to 22 | |
| 17 |
| Strength to Weight: Bending, points | 17 to 20 | |
| 17 |
| Thermal Diffusivity, mm2/s | 32 | |
| 12 |
| Thermal Shock Resistance, points | 16 to 20 | |
| 15 |
Alloy Composition
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| Aluminum (Al), % | 0.5 to 2.0 | |
| 0 |
| Copper (Cu), % | 57 to 60 | |
| 43.5 to 46.5 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 |
| Lead (Pb), % | 0 to 0.5 | |
| 0.8 to 1.2 |
| Manganese (Mn), % | 2.0 to 3.5 | |
| 1.5 to 2.5 |
| Nickel (Ni), % | 0 to 0.25 | |
| 9.0 to 11 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 |
| Tin (Sn), % | 0 to 0.3 | |
| 0 |
| Zinc (Zn), % | 31.1 to 40 | |
| 38.3 to 45.2 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |