C68000 Brass vs. C95800 Bronze
Both C68000 brass and C95800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is C68000 brass and the bottom bar is C95800 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 120 |
| Elongation at Break, % | 27 | |
| 22 |
| Poisson's Ratio | 0.3 | |
| 0.34 |
| Shear Modulus, GPa | 40 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 660 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 230 |
| Melting Completion (Liquidus), °C | 880 | |
| 1060 |
| Melting Onset (Solidus), °C | 870 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 440 |
| Thermal Conductivity, W/m-K | 96 | |
| 36 |
| Thermal Expansion, µm/m-K | 21 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 29 |
| Density, g/cm3 | 8.0 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.4 |
| Embodied Energy, MJ/kg | 48 | |
| 55 |
| Embodied Water, L/kg | 330 | |
| 370 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 82 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 95 | |
| 310 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.9 |
| Stiffness to Weight: Bending, points | 20 | |
| 20 |
| Strength to Weight: Axial, points | 14 | |
| 22 |
| Strength to Weight: Bending, points | 15 | |
| 20 |
| Thermal Diffusivity, mm2/s | 31 | |
| 9.9 |
| Thermal Shock Resistance, points | 13 | |
| 23 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.010 | |
| 8.5 to 9.5 |
| Copper (Cu), % | 56 to 60 | |
| 79 to 83.2 |
| Iron (Fe), % | 0.25 to 1.3 | |
| 3.5 to 4.5 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.030 |
| Manganese (Mn), % | 0.010 to 0.5 | |
| 0.8 to 1.5 |
| Nickel (Ni), % | 0.2 to 0.8 | |
| 4.0 to 5.0 |
| Silicon (Si), % | 0.040 to 0.15 | |
| 0 to 0.1 |
| Tin (Sn), % | 0.75 to 1.1 | |
| 0 |
| Zinc (Zn), % | 35.6 to 42.8 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |