C95700 Bronze vs. C95820 Bronze
Both C95700 bronze and C95820 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 89% of their average alloy composition in common.
For each property being compared, the top bar is C95700 bronze and the bottom bar is C95820 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 130 | |
| 120 |
| Elongation at Break, % | 23 | |
| 15 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 47 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 680 | |
| 730 |
| Tensile Strength: Yield (Proof), MPa | 310 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 230 |
| Melting Completion (Liquidus), °C | 990 | |
| 1080 |
| Melting Onset (Solidus), °C | 950 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 440 |
| Thermal Conductivity, W/m-K | 12 | |
| 38 |
| Thermal Expansion, µm/m-K | 18 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 29 |
| Density, g/cm3 | 8.2 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 3.5 |
| Embodied Energy, MJ/kg | 54 | |
| 56 |
| Embodied Water, L/kg | 360 | |
| 380 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 86 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 390 | |
| 400 |
| Stiffness to Weight: Axial, points | 8.5 | |
| 8.0 |
| Stiffness to Weight: Bending, points | 20 | |
| 20 |
| Strength to Weight: Axial, points | 23 | |
| 24 |
| Strength to Weight: Bending, points | 21 | |
| 22 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 11 |
| Thermal Shock Resistance, points | 21 | |
| 25 |
Alloy Composition
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| Aluminum (Al), % | 7.0 to 8.5 | |
| 9.0 to 10 |
| Copper (Cu), % | 71 to 78.5 | |
| 77.5 to 82.5 |
| Iron (Fe), % | 2.0 to 4.0 | |
| 4.0 to 5.0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 to 0.020 |
| Manganese (Mn), % | 11 to 14 | |
| 0 to 1.5 |
| Nickel (Ni), % | 1.5 to 3.0 | |
| 4.5 to 5.8 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.1 |
| Tin (Sn), % | 0 | |
| 0 to 0.020 |
| Zinc (Zn), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.8 |