CC767S Brass vs. CC331G Bronze
Both CC767S brass and CC331G bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common.
For each property being compared, the top bar is CC767S brass and the bottom bar is CC331G bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 86 | |
| 140 |
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 34 | |
| 20 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Shear Modulus, GPa | 40 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 430 | |
| 620 |
| Tensile Strength: Yield (Proof), MPa | 150 | |
| 240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 220 |
| Melting Completion (Liquidus), °C | 840 | |
| 1060 |
| Melting Onset (Solidus), °C | 790 | |
| 1000 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 440 |
| Thermal Conductivity, W/m-K | 110 | |
| 61 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 32 | |
| 13 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 36 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 28 |
| Density, g/cm3 | 8.0 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.2 |
| Embodied Energy, MJ/kg | 47 | |
| 53 |
| Embodied Water, L/kg | 330 | |
| 390 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 97 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 100 | |
| 250 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 15 | |
| 21 |
| Strength to Weight: Bending, points | 16 | |
| 19 |
| Thermal Diffusivity, mm2/s | 34 | |
| 17 |
| Thermal Shock Resistance, points | 14 | |
| 22 |
Alloy Composition
| Aluminum (Al), % | 0.1 to 0.8 | |
| 8.5 to 10.5 |
| Copper (Cu), % | 58 to 64 | |
| 83 to 86.5 |
| Iron (Fe), % | 0 to 0.5 | |
| 1.5 to 3.5 |
| Lead (Pb), % | 0 to 0.1 | |
| 0 to 0.1 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0 to 1.5 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 to 0.2 |
| Tin (Sn), % | 0 to 0.1 | |
| 0 to 0.2 |
| Zinc (Zn), % | 32.8 to 41.9 | |
| 0 to 0.5 |