C90700 Bronze vs. C92900 Bronze
Both C90700 bronze and C92900 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common.
For each property being compared, the top bar is C90700 bronze and the bottom bar is C92900 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 84 |
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 12 | |
| 9.1 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 40 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 330 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 180 | |
| 190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 170 |
| Melting Completion (Liquidus), °C | 1000 | |
| 1030 |
| Melting Onset (Solidus), °C | 830 | |
| 860 |
| Specific Heat Capacity, J/kg-K | 370 | |
| 370 |
| Thermal Conductivity, W/m-K | 71 | |
| 58 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 10 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 9.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 35 | |
| 35 |
| Density, g/cm3 | 8.7 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 3.7 | |
| 3.8 |
| Embodied Energy, MJ/kg | 60 | |
| 61 |
| Embodied Water, L/kg | 390 | |
| 390 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 34 | |
| 27 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 | |
| 170 |
| Stiffness to Weight: Axial, points | 6.9 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 18 | |
| 18 |
| Strength to Weight: Axial, points | 10 | |
| 11 |
| Strength to Weight: Bending, points | 12 | |
| 13 |
| Thermal Diffusivity, mm2/s | 22 | |
| 18 |
| Thermal Shock Resistance, points | 12 | |
| 13 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 to 0.2 | |
| 0 to 0.25 |
| Copper (Cu), % | 88 to 90 | |
| 82 to 86 |
| Iron (Fe), % | 0 to 0.15 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 to 0.5 | |
| 2.0 to 3.2 |
| Nickel (Ni), % | 0 to 0.5 | |
| 2.8 to 4.0 |
| Phosphorus (P), % | 0 to 1.5 | |
| 0 to 1.5 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.050 |
| Tin (Sn), % | 10 to 12 | |
| 9.0 to 11 |
| Zinc (Zn), % | 0 to 0.5 | |
| 0 to 0.25 |
| Residuals, % | 0 to 0.6 | |
| 0 to 0.7 |