CR011A Copper vs. CR012A Copper
Both CR011A copper and CR012A 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 CR011A copper and the bottom bar is CR012A copper.
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 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 220 | |
| 220 |
| Tensile Strength: Yield (Proof), MPa | 130 | |
| 130 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 200 |
| Melting Completion (Liquidus), °C | 1090 | |
| 1090 |
| Melting Onset (Solidus), °C | 1040 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 390 | |
| 390 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 100 | |
| 100 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 100 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 32 | |
| 33 |
| Density, g/cm3 | 9.0 | |
| 9.0 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 42 | |
| 42 |
| Embodied Water, L/kg | 340 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 29 | |
| 29 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 76 | |
| 76 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 18 | |
| 18 |
| Strength to Weight: Axial, points | 6.8 | |
| 6.8 |
| Strength to Weight: Bending, points | 9.0 | |
| 9.0 |
| Thermal Diffusivity, mm2/s | 110 | |
| 110 |
| Thermal Shock Resistance, points | 7.8 | |
| 7.8 |
Alloy Composition
| Bismuth (Bi), % | 0 to 0.00050 | |
| 0 to 0.00050 |
| Copper (Cu), % | 99.88 to 99.97 | |
| 99.85 to 99.94 |
| Oxygen (O), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silver (Ag), % | 0.030 to 0.050 | |
| 0.060 to 0.080 |