C86700 Bronze vs. C85200 Brass
Both C86700 bronze and C85200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 84% of their average alloy composition in common.
For each property being compared, the top bar is C86700 bronze and the bottom bar is C85200 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 17 | |
| 28 |
| Poisson's Ratio | 0.31 | |
| 0.32 |
| Shear Modulus, GPa | 41 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 630 | |
| 270 |
| Tensile Strength: Yield (Proof), MPa | 250 | |
| 95 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 140 |
| Melting Completion (Liquidus), °C | 880 | |
| 940 |
| Melting Onset (Solidus), °C | 860 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 380 |
| Thermal Conductivity, W/m-K | 89 | |
| 84 |
| Thermal Expansion, µm/m-K | 20 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 17 | |
| 18 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 19 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 26 |
| Density, g/cm3 | 7.9 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.9 | |
| 2.8 |
| Embodied Energy, MJ/kg | 49 | |
| 46 |
| Embodied Water, L/kg | 340 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 | |
| 59 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 290 | |
| 42 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 22 | |
| 8.9 |
| Strength to Weight: Bending, points | 21 | |
| 11 |
| Thermal Diffusivity, mm2/s | 28 | |
| 27 |
| Thermal Shock Resistance, points | 21 | |
| 9.3 |
Alloy Composition
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| Aluminum (Al), % | 1.0 to 3.0 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 | |
| 0 to 0.2 |
| Copper (Cu), % | 55 to 60 | |
| 70 to 74 |
| Iron (Fe), % | 1.0 to 3.0 | |
| 0 to 0.6 |
| Lead (Pb), % | 0.5 to 1.5 | |
| 1.5 to 3.8 |
| Manganese (Mn), % | 1.0 to 3.5 | |
| 0 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 | |
| 0 to 0.050 |
| Sulfur (S), % | 0 | |
| 0 to 0.050 |
| Tin (Sn), % | 0 to 1.5 | |
| 0.7 to 2.0 |
| Zinc (Zn), % | 30 to 38 | |
| 20 to 27 |
| Residuals, % | 0 to 1.0 | |
| 0 to 0.9 |