C55281 Copper vs. C55282 Copper
Both C55281 copper and C55282 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. Their average alloy composition is basically identical.
For each property being compared, the top bar is C55281 copper and the bottom bar is C55282 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 40 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 190 | |
| 180 |
Thermal Properties
| Brazing Temperature, °C | 720 to 820 | |
| 700 to 820 |
| Latent Heat of Fusion, J/g | 190 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 200 |
| Melting Completion (Liquidus), °C | 810 | |
| 770 |
| Melting Onset (Solidus), °C | 640 | |
| 640 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 400 |
| Thermal Expansion, µm/m-K | 16 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.7 | |
| 8.6 |
| Embodied Carbon, kg CO2/kg material | 7.0 | |
| 7.0 |
| Embodied Energy, MJ/kg | 110 | |
| 110 |
Common Calculations
| Stiffness to Weight: Axial, points | 6.9 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 18 | |
| 18 |
| Strength to Weight: Axial, points | 6.1 | |
| 5.8 |
| Strength to Weight: Bending, points | 8.5 | |
| 8.2 |
| Thermal Shock Resistance, points | 7.7 | |
| 7.4 |
Alloy Composition
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| Copper (Cu), % | 88.5 to 89.4 | |
| 87.7 to 88.7 |
| Phosphorus (P), % | 5.8 to 6.2 | |
| 6.5 to 7.0 |
| Silver (Ag), % | 4.8 to 5.2 | |
| 4.8 to 5.2 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |