C74500 Nickel Silver vs. C51900 Bronze
Both C74500 nickel silver and C51900 bronze are copper alloys. They have 65% of their average alloy composition in common.
For each property being compared, the top bar is C74500 nickel silver and the bottom bar is C51900 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 3.0 to 24 | |
| 14 to 29 |
| Poisson's Ratio | 0.32 | |
| 0.34 |
| Rockwell B Hardness | 66 to 94 | |
| 42 to 91 |
| Rockwell Superficial 30T Hardness | 60 to 79 | |
| 45 to 76 |
| Shear Modulus, GPa | 44 | |
| 42 |
| Shear Strength, MPa | 310 to 380 | |
| 320 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 390 to 700 | |
| 380 to 620 |
| Tensile Strength: Yield (Proof), MPa | 380 to 600 | |
| 390 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 180 |
| Melting Completion (Liquidus), °C | 1020 | |
| 1040 |
| Melting Onset (Solidus), °C | 970 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 380 |
| Thermal Conductivity, W/m-K | 45 | |
| 66 |
| Thermal Expansion, µm/m-K | 19 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 9.0 | |
| 14 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.7 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 33 |
| Density, g/cm3 | 8.3 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 3.2 |
| Embodied Energy, MJ/kg | 54 | |
| 51 |
| Embodied Water, L/kg | 310 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 to 160 | |
| 55 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 620 to 1540 | |
| 680 to 1450 |
| Stiffness to Weight: Axial, points | 7.7 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 13 to 23 | |
| 12 to 19 |
| Strength to Weight: Bending, points | 14 to 21 | |
| 13 to 18 |
| Thermal Diffusivity, mm2/s | 14 | |
| 20 |
| Thermal Shock Resistance, points | 13 to 23 | |
| 14 to 22 |
Alloy Composition
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| Copper (Cu), % | 63.5 to 66.5 | |
| 91.7 to 95 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.1 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 9.0 to 11 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0.030 to 0.35 |
| Tin (Sn), % | 0 | |
| 5.0 to 7.0 |
| Zinc (Zn), % | 21.2 to 27.5 | |
| 0 to 0.3 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |