C70260 Copper vs. R30035 Cobalt
C70260 copper belongs to the copper alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is C70260 copper and the bottom bar is R30035 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 220 to 230 |
| Elongation at Break, % | 9.5 to 19 | |
| 9.0 to 46 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 44 | |
| 84 to 89 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 760 | |
| 900 to 1900 |
| Tensile Strength: Yield (Proof), MPa | 410 to 650 | |
| 300 to 1650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 320 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1440 |
| Melting Onset (Solidus), °C | 1040 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 440 |
| Thermal Conductivity, W/m-K | 160 | |
| 11 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 40 to 50 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 40 to 51 | |
| 1.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 100 |
| Density, g/cm3 | 8.9 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 10 |
| Embodied Energy, MJ/kg | 43 | |
| 140 |
| Embodied Water, L/kg | 310 | |
| 410 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 46 to 140 | |
| 160 to 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 710 to 1810 | |
| 210 to 5920 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 14 to 15 |
| Stiffness to Weight: Bending, points | 18 | |
| 23 to 24 |
| Strength to Weight: Axial, points | 16 to 24 | |
| 29 to 61 |
| Strength to Weight: Bending, points | 16 to 21 | |
| 24 to 39 |
| Thermal Diffusivity, mm2/s | 45 | |
| 3.0 |
| Thermal Shock Resistance, points | 18 to 27 | |
| 23 to 46 |
Alloy Composition
Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
| Boron (B), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0 | |
| 0 to 0.025 |
| Chromium (Cr), % | 0 | |
| 19 to 21 |
| Cobalt (Co), % | 0 | |
| 29.1 to 39 |
| Copper (Cu), % | 95.8 to 98.8 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 1.0 |
| Manganese (Mn), % | 0 | |
| 0 to 0.15 |
| Molybdenum (Mo), % | 0 | |
| 9.0 to 10.5 |
| Nickel (Ni), % | 1.0 to 3.0 | |
| 33 to 37 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.2 to 0.7 | |
| 0 to 0.15 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 | |
| 0 to 1.0 |
| Residuals, % | 0 to 0.5 | |
| 0 |