C67000 Bronze vs. C69710 Brass
Both C67000 bronze and C69710 brass are copper alloys. They have 84% of their average alloy composition in common.
For each property being compared, the top bar is C67000 bronze and the bottom bar is C69710 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 5.6 to 11 | |
| 25 |
| Poisson's Ratio | 0.31 | |
| 0.32 |
| Shear Modulus, GPa | 42 | |
| 41 |
| Shear Strength, MPa | 390 to 510 | |
| 300 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 880 | |
| 470 |
| Tensile Strength: Yield (Proof), MPa | 350 to 540 | |
| 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 240 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 160 |
| Melting Completion (Liquidus), °C | 900 | |
| 930 |
| Melting Onset (Solidus), °C | 850 | |
| 880 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 400 |
| Thermal Conductivity, W/m-K | 99 | |
| 40 |
| Thermal Expansion, µm/m-K | 20 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 22 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 25 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 26 |
| Density, g/cm3 | 7.9 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.9 | |
| 2.7 |
| Embodied Energy, MJ/kg | 49 | |
| 44 |
| Embodied Water, L/kg | 350 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 43 to 62 | |
| 99 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 1290 | |
| 250 |
| Stiffness to Weight: Axial, points | 7.8 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 23 to 31 | |
| 16 |
| Strength to Weight: Bending, points | 21 to 26 | |
| 16 |
| Thermal Diffusivity, mm2/s | 30 | |
| 12 |
| Thermal Shock Resistance, points | 21 to 29 | |
| 16 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 6.0 | |
| 0 |
| Arsenic (As), % | 0 | |
| 0.030 to 0.060 |
| Copper (Cu), % | 63 to 68 | |
| 75 to 80 |
| Iron (Fe), % | 2.0 to 4.0 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 to 0.2 | |
| 0.5 to 1.5 |
| Manganese (Mn), % | 2.5 to 5.0 | |
| 0 to 0.4 |
| Silicon (Si), % | 0 | |
| 2.5 to 3.5 |
| Tin (Sn), % | 0 to 0.5 | |
| 0 |
| Zinc (Zn), % | 21.8 to 32.5 | |
| 13.8 to 22 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |