C51900 Bronze vs. C75400 Nickel Silver
Both C51900 bronze and C75400 nickel silver are copper alloys. They have 65% of their average alloy composition in common.
For each property being compared, the top bar is C51900 bronze and the bottom bar is C75400 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 14 to 29 | |
| 2.0 to 43 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Rockwell B Hardness | 42 to 91 | |
| 60 to 90 |
| Rockwell Superficial 30T Hardness | 45 to 76 | |
| 27 to 77 |
| Shear Modulus, GPa | 42 | |
| 46 |
| Shear Strength, MPa | 320 to 370 | |
| 250 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 620 | |
| 370 to 630 |
| Tensile Strength: Yield (Proof), MPa | 390 to 570 | |
| 130 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 190 |
| Melting Completion (Liquidus), °C | 1040 | |
| 1080 |
| Melting Onset (Solidus), °C | 930 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 66 | |
| 36 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 14 | |
| 7.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 33 | |
| 32 |
| Density, g/cm3 | 8.8 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 3.8 |
| Embodied Energy, MJ/kg | 51 | |
| 59 |
| Embodied Water, L/kg | 360 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 55 to 180 | |
| 12 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 680 to 1450 | |
| 75 to 1450 |
| Stiffness to Weight: Axial, points | 7.0 | |
| 7.9 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 12 to 19 | |
| 12 to 21 |
| Strength to Weight: Bending, points | 13 to 18 | |
| 13 to 19 |
| Thermal Diffusivity, mm2/s | 20 | |
| 11 |
| Thermal Shock Resistance, points | 14 to 22 | |
| 12 to 21 |
Alloy Composition
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| Copper (Cu), % | 91.7 to 95 | |
| 63.5 to 66.5 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 14 to 16 |
| Phosphorus (P), % | 0.030 to 0.35 | |
| 0 |
| Tin (Sn), % | 5.0 to 7.0 | |
| 0 |
| Zinc (Zn), % | 0 to 0.3 | |
| 16.2 to 22.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |