CC761S Brass vs. CC497K Bronze
Both CC761S brass and CC497K 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 CC761S brass and the bottom bar is CC497K bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 | |
| 55 |
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 93 |
| Elongation at Break, % | 8.7 | |
| 6.7 |
| Poisson's Ratio | 0.33 | |
| 0.36 |
| Shear Modulus, GPa | 42 | |
| 34 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 190 |
| Tensile Strength: Yield (Proof), MPa | 340 | |
| 91 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 160 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 130 |
| Melting Completion (Liquidus), °C | 960 | |
| 870 |
| Melting Onset (Solidus), °C | 910 | |
| 800 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 330 |
| Thermal Conductivity, W/m-K | 27 | |
| 53 |
| Thermal Expansion, µm/m-K | 18 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 40 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 43 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 27 | |
| 29 |
| Density, g/cm3 | 8.3 | |
| 9.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.0 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 300 | |
| 370 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 41 | |
| 10 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 530 | |
| 45 |
| Stiffness to Weight: Axial, points | 7.4 | |
| 5.5 |
| Stiffness to Weight: Bending, points | 19 | |
| 16 |
| Strength to Weight: Axial, points | 18 | |
| 5.6 |
| Strength to Weight: Bending, points | 18 | |
| 7.8 |
| Thermal Diffusivity, mm2/s | 8.0 | |
| 17 |
| Thermal Shock Resistance, points | 19 | |
| 7.2 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.1 | |
| 0 to 0.010 |
| Antimony (Sb), % | 0 to 0.050 | |
| 0 to 0.75 |
| Copper (Cu), % | 78 to 83 | |
| 67.5 to 77.5 |
| Iron (Fe), % | 0 to 0.6 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 to 0.8 | |
| 18 to 23 |
| Manganese (Mn), % | 0 to 0.2 | |
| 0 to 0.2 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0.5 to 2.5 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.1 |
| Silicon (Si), % | 3.0 to 5.0 | |
| 0 to 0.010 |
| Sulfur (S), % | 0 | |
| 0 to 0.1 |
| Tin (Sn), % | 0 to 0.3 | |
| 4.0 to 6.0 |
| Zinc (Zn), % | 8.9 to 19 | |
| 0 to 2.0 |