C67400 Bronze vs. C78200 Nickel Silver
Both C67400 bronze and C78200 nickel silver are copper alloys. They have 84% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is C67400 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, % | 22 to 28 | |
| 3.0 to 40 |
| Poisson's Ratio | 0.31 | |
| 0.32 |
| Rockwell B Hardness | 78 to 85 | |
| 65 to 90 |
| Shear Modulus, GPa | 41 | |
| 43 |
| Shear Strength, MPa | 310 to 350 | |
| 280 to 400 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 610 | |
| 370 to 630 |
| Tensile Strength: Yield (Proof), MPa | 250 to 370 | |
| 170 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 160 |
| Melting Completion (Liquidus), °C | 890 | |
| 1000 |
| Melting Onset (Solidus), °C | 870 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 390 |
| Thermal Conductivity, W/m-K | 100 | |
| 48 |
| Thermal Expansion, µm/m-K | 21 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 23 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 26 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 28 |
| Density, g/cm3 | 7.9 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.3 |
| Embodied Energy, MJ/kg | 48 | |
| 52 |
| Embodied Water, L/kg | 330 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 18 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 660 | |
| 130 to 1440 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 17 to 22 | |
| 12 to 21 |
| Strength to Weight: Bending, points | 17 to 20 | |
| 14 to 19 |
| Thermal Diffusivity, mm2/s | 32 | |
| 15 |
| Thermal Shock Resistance, points | 16 to 20 | |
| 12 to 21 |
Alloy Composition
| Aluminum (Al), % | 0.5 to 2.0 | |
| 0 |
| Copper (Cu), % | 57 to 60 | |
| 63 to 67 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.35 |
| Lead (Pb), % | 0 to 0.5 | |
| 1.5 to 2.5 |
| Manganese (Mn), % | 2.0 to 3.5 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 to 0.25 | |
| 7.0 to 9.0 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 |
| Tin (Sn), % | 0 to 0.3 | |
| 0 |
| Zinc (Zn), % | 31.1 to 40 | |
| 20.2 to 28.5 |
| Residuals, % | 0 | |
| 0 to 0.5 |