C87700 Bronze vs. C83600 Ounce Metal
Both C87700 bronze and C83600 ounce metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common.
For each property being compared, the top bar is C87700 bronze and the bottom bar is C83600 ounce metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 3.6 | |
| 21 |
| Poisson's Ratio | 0.33 | |
| 0.34 |
| Shear Modulus, GPa | 42 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 300 | |
| 250 |
| Tensile Strength: Yield (Proof), MPa | 120 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 160 |
| Melting Completion (Liquidus), °C | 980 | |
| 1010 |
| Melting Onset (Solidus), °C | 900 | |
| 850 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 370 |
| Thermal Conductivity, W/m-K | 120 | |
| 72 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 45 | |
| 15 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 48 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 31 |
| Density, g/cm3 | 8.5 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.1 |
| Embodied Energy, MJ/kg | 45 | |
| 50 |
| Embodied Water, L/kg | 310 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 8.6 | |
| 43 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 64 | |
| 70 |
| Stiffness to Weight: Axial, points | 7.4 | |
| 6.7 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 9.8 | |
| 7.9 |
| Strength to Weight: Bending, points | 12 | |
| 10 |
| Thermal Diffusivity, mm2/s | 34 | |
| 22 |
| Thermal Shock Resistance, points | 11 | |
| 9.3 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 to 0.1 | |
| 0 to 0.25 |
| Copper (Cu), % | 87.5 to 90.5 | |
| 84 to 86 |
| Iron (Fe), % | 0 to 0.5 | |
| 0 to 0.3 |
| Lead (Pb), % | 0 to 0.090 | |
| 4.0 to 6.0 |
| Manganese (Mn), % | 0 to 0.8 | |
| 0 |
| Nickel (Ni), % | 0 to 0.25 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 to 0.15 | |
| 0 to 1.5 |
| Silicon (Si), % | 2.5 to 3.5 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 | |
| 0 to 0.080 |
| Tin (Sn), % | 0 to 2.0 | |
| 4.0 to 6.0 |
| Zinc (Zn), % | 7.0 to 9.0 | |
| 4.0 to 6.0 |
| Residuals, % | 0 to 0.8 | |
| 0 to 0.7 |