C87500 Brass vs. C95700 Bronze
Both C87500 brass and C95700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common.
For each property being compared, the top bar is C87500 brass and the bottom bar is C95700 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 130 |
| Elongation at Break, % | 18 | |
| 23 |
| Poisson's Ratio | 0.33 | |
| 0.34 |
| Shear Modulus, GPa | 42 | |
| 47 |
| Tensile Strength: Ultimate (UTS), MPa | 460 | |
| 680 |
| Tensile Strength: Yield (Proof), MPa | 190 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 220 |
| Melting Completion (Liquidus), °C | 920 | |
| 990 |
| Melting Onset (Solidus), °C | 820 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 440 |
| Thermal Conductivity, W/m-K | 28 | |
| 12 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.7 | |
| 3.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.3 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 27 | |
| 26 |
| Density, g/cm3 | 8.3 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.3 |
| Embodied Energy, MJ/kg | 44 | |
| 54 |
| Embodied Water, L/kg | 300 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 67 | |
| 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 | |
| 390 |
| Stiffness to Weight: Axial, points | 7.4 | |
| 8.5 |
| Stiffness to Weight: Bending, points | 19 | |
| 20 |
| Strength to Weight: Axial, points | 16 | |
| 23 |
| Strength to Weight: Bending, points | 16 | |
| 21 |
| Thermal Diffusivity, mm2/s | 8.3 | |
| 3.3 |
| Thermal Shock Resistance, points | 17 | |
| 21 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.5 | |
| 7.0 to 8.5 |
| Copper (Cu), % | 79 to 85 | |
| 71 to 78.5 |
| Iron (Fe), % | 0 | |
| 2.0 to 4.0 |
| Lead (Pb), % | 0 to 0.5 | |
| 0 to 0.030 |
| Manganese (Mn), % | 0 | |
| 11 to 14 |
| Nickel (Ni), % | 0 | |
| 1.5 to 3.0 |
| Silicon (Si), % | 3.0 to 5.0 | |
| 0 to 0.1 |
| Zinc (Zn), % | 12 to 16 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |