C43500 Brass vs. C64700 Bronze
Both C43500 brass and C64700 bronze are copper alloys. They have 81% of their average alloy composition in common.
For each property being compared, the top bar is C43500 brass and the bottom bar is C64700 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 8.5 to 46 | |
| 9.0 |
| Poisson's Ratio | 0.32 | |
| 0.34 |
| Shear Modulus, GPa | 42 | |
| 44 |
| Shear Strength, MPa | 220 to 310 | |
| 390 |
| Tensile Strength: Ultimate (UTS), MPa | 320 to 530 | |
| 660 |
| Tensile Strength: Yield (Proof), MPa | 120 to 480 | |
| 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 220 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 200 |
| Melting Completion (Liquidus), °C | 1000 | |
| 1090 |
| Melting Onset (Solidus), °C | 970 | |
| 1030 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 210 |
| Thermal Expansion, µm/m-K | 19 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 38 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 30 | |
| 38 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 28 | |
| 31 |
| Density, g/cm3 | 8.5 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.7 |
| Embodied Energy, MJ/kg | 45 | |
| 43 |
| Embodied Water, L/kg | 320 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 44 to 120 | |
| 57 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 65 to 1040 | |
| 1370 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 10 to 17 | |
| 21 |
| Strength to Weight: Bending, points | 12 to 17 | |
| 19 |
| Thermal Diffusivity, mm2/s | 37 | |
| 59 |
| Thermal Shock Resistance, points | 11 to 18 | |
| 24 |
Alloy Composition
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| Copper (Cu), % | 79 to 83 | |
| 95.8 to 98 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.090 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 | |
| 1.6 to 2.2 |
| Silicon (Si), % | 0 | |
| 0.4 to 0.8 |
| Tin (Sn), % | 0.6 to 1.2 | |
| 0 |
| Zinc (Zn), % | 15.4 to 20.4 | |
| 0 to 0.5 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.5 |