C18700 Copper vs. C65400 Bronze
Both C18700 copper and C65400 bronze are copper alloys. They have a very high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C18700 copper and the bottom bar is C65400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 9.0 to 9.6 | |
| 2.6 to 47 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 43 | |
| 43 |
| Shear Strength, MPa | 170 to 190 | |
| 350 to 530 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 330 | |
| 500 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 230 to 250 | |
| 170 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 200 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1020 |
| Melting Onset (Solidus), °C | 950 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 400 |
| Thermal Conductivity, W/m-K | 380 | |
| 36 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 98 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 99 | |
| 7.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 31 |
| Density, g/cm3 | 9.0 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.8 |
| Embodied Energy, MJ/kg | 41 | |
| 45 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 29 | |
| 10 to 480 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 240 to 280 | |
| 130 to 3640 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 9.0 to 10 | |
| 16 to 34 |
| Strength to Weight: Bending, points | 11 to 12 | |
| 16 to 27 |
| Thermal Diffusivity, mm2/s | 110 | |
| 10 |
| Thermal Shock Resistance, points | 10 to 12 | |
| 18 to 39 |
Alloy Composition
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| Chromium (Cr), % | 0 | |
| 0.010 to 0.12 |
| Copper (Cu), % | 98 to 99.2 | |
| 93.8 to 96.1 |
| Lead (Pb), % | 0.8 to 1.5 | |
| 0 to 0.050 |
| Silicon (Si), % | 0 | |
| 2.7 to 3.4 |
| Tin (Sn), % | 0 | |
| 1.2 to 1.9 |
| Zinc (Zn), % | 0 | |
| 0 to 0.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.2 |