CR012A Copper vs. C95820 Bronze
Both CR012A copper and C95820 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common.
For each property being compared, the top bar is CR012A copper and the bottom bar is C95820 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 120 |
| Elongation at Break, % | 15 | |
| 15 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 43 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 220 | |
| 730 |
| Tensile Strength: Yield (Proof), MPa | 130 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 230 |
| Melting Completion (Liquidus), °C | 1090 | |
| 1080 |
| Melting Onset (Solidus), °C | 1040 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 440 |
| Thermal Conductivity, W/m-K | 390 | |
| 38 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 100 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 33 | |
| 29 |
| Density, g/cm3 | 9.0 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.5 |
| Embodied Energy, MJ/kg | 42 | |
| 56 |
| Embodied Water, L/kg | 360 | |
| 380 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 29 | |
| 86 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 76 | |
| 400 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 8.0 |
| Stiffness to Weight: Bending, points | 18 | |
| 20 |
| Strength to Weight: Axial, points | 6.8 | |
| 24 |
| Strength to Weight: Bending, points | 9.0 | |
| 22 |
| Thermal Diffusivity, mm2/s | 110 | |
| 11 |
| Thermal Shock Resistance, points | 7.8 | |
| 25 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 9.0 to 10 |
| Bismuth (Bi), % | 0 to 0.00050 | |
| 0 |
| Copper (Cu), % | 99.85 to 99.94 | |
| 77.5 to 82.5 |
| Iron (Fe), % | 0 | |
| 4.0 to 5.0 |
| Lead (Pb), % | 0 | |
| 0 to 0.020 |
| Manganese (Mn), % | 0 | |
| 0 to 1.5 |
| Nickel (Ni), % | 0 | |
| 4.5 to 5.8 |
| Oxygen (O), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Silver (Ag), % | 0.060 to 0.080 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.020 |
| Zinc (Zn), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 | |
| 0 to 0.8 |