H02 C51000 Bronze vs. H02 C78200 Nickel Silver
Both H02 C51000 bronze and H02 C78200 nickel silver are copper alloys. Both are furnished in the H02 (half hard) temper. They have 65% of their average alloy composition in common.
For each property being compared, the top bar is H02 C51000 bronze and the bottom bar is H02 C78200 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 28 | |
| 12 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Rockwell B Hardness | 75 | |
| 78 |
| Rockwell Superficial 30T Hardness | 63 | |
| 69 |
| Shear Modulus, GPa | 42 | |
| 43 |
| Shear Strength, MPa | 300 | |
| 320 |
| Tensile Strength: Ultimate (UTS), MPa | 460 | |
| 480 |
| Tensile Strength: Yield (Proof), MPa | 380 | |
| 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 190 | |
| 160 |
| Melting Completion (Liquidus), °C | 1050 | |
| 1000 |
| Melting Onset (Solidus), °C | 960 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 77 | |
| 48 |
| Thermal Expansion, µm/m-K | 18 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 18 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 18 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 33 | |
| 28 |
| Density, g/cm3 | 8.8 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 3.1 | |
| 3.3 |
| Embodied Energy, MJ/kg | 50 | |
| 52 |
| Embodied Water, L/kg | 350 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 55 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 640 | |
| 840 |
| Stiffness to Weight: Axial, points | 7.0 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 15 | |
| 16 |
| Strength to Weight: Bending, points | 15 | |
| 16 |
| Thermal Diffusivity, mm2/s | 23 | |
| 15 |
| Thermal Shock Resistance, points | 17 | |
| 16 |
Alloy Composition
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| Copper (Cu), % | 92.9 to 95.5 | |
| 63 to 67 |
| Iron (Fe), % | 0 to 0.1 | |
| 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 |
| Phosphorus (P), % | 0.030 to 0.35 | |
| 0 |
| Tin (Sn), % | 4.5 to 5.8 | |
| 0 |
| Zinc (Zn), % | 0 to 0.3 | |
| 20.2 to 28.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |