O60 C18900 Copper vs. O60 C61400 Bronze
Both O60 C18900 copper and O60 C61400 bronze are copper alloys. Both are furnished in the O60 (soft annealed) temper. They have 90% of their average alloy composition in common.
For each property being compared, the top bar is O60 C18900 copper and the bottom bar is O60 C61400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 48 | |
| 39 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 43 | |
| 43 |
| Shear Strength, MPa | 190 | |
| 370 |
| Tensile Strength: Ultimate (UTS), MPa | 260 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 67 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 220 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 220 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1050 |
| Melting Onset (Solidus), °C | 1020 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 420 |
| Thermal Conductivity, W/m-K | 130 | |
| 67 |
| Thermal Expansion, µm/m-K | 17 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 30 | |
| 14 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 30 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 28 |
| Density, g/cm3 | 8.9 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.0 |
| Embodied Energy, MJ/kg | 42 | |
| 48 |
| Embodied Water, L/kg | 310 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 95 | |
| 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 20 | |
| 210 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 8.2 | |
| 18 |
| Strength to Weight: Bending, points | 10 | |
| 17 |
| Thermal Diffusivity, mm2/s | 38 | |
| 19 |
| Thermal Shock Resistance, points | 9.3 | |
| 18 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.010 | |
| 6.0 to 8.0 |
| Copper (Cu), % | 97.7 to 99.15 | |
| 86 to 92.5 |
| Iron (Fe), % | 0 | |
| 1.5 to 3.5 |
| Lead (Pb), % | 0 to 0.020 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0.1 to 0.3 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 to 0.050 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.15 to 0.4 | |
| 0 |
| Tin (Sn), % | 0.6 to 0.9 | |
| 0 |
| Zinc (Zn), % | 0 to 0.1 | |
| 0 to 1.0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |