R30012 Cobalt vs. C62400 Bronze
R30012 cobalt belongs to the cobalt alloys classification, while C62400 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is R30012 cobalt and the bottom bar is C62400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 | |
| 110 |
| Elongation at Break, % | 1.0 | |
| 11 to 14 |
| Poisson's Ratio | 0.28 | |
| 0.34 |
| Shear Modulus, GPa | 86 | |
| 42 |
| Tensile Strength: Ultimate (UTS), MPa | 830 | |
| 690 to 730 |
| Tensile Strength: Yield (Proof), MPa | 650 | |
| 270 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 230 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1040 |
| Melting Onset (Solidus), °C | 1280 | |
| 1030 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 440 |
| Thermal Conductivity, W/m-K | 15 | |
| 59 |
| Thermal Expansion, µm/m-K | 12 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.8 | |
| 12 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 3.2 |
| Embodied Energy, MJ/kg | 120 | |
| 53 |
| Embodied Water, L/kg | 480 | |
| 400 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 7.7 | |
| 68 to 77 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 960 | |
| 320 to 550 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 23 | |
| 20 |
| Strength to Weight: Axial, points | 26 | |
| 23 to 25 |
| Strength to Weight: Bending, points | 22 | |
| 21 to 22 |
| Thermal Diffusivity, mm2/s | 3.8 | |
| 16 |
| Thermal Shock Resistance, points | 23 | |
| 25 to 26 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 10 to 11.5 |
| Carbon (C), % | 1.4 to 2.0 | |
| 0 |
| Chromium (Cr), % | 27 to 32 | |
| 0 |
| Cobalt (Co), % | 47.5 to 64.1 | |
| 0 |
| Copper (Cu), % | 0 | |
| 82.8 to 88 |
| Iron (Fe), % | 0 to 3.0 | |
| 2.0 to 4.5 |
| Manganese (Mn), % | 0 | |
| 0 to 0.3 |
| Molybdenum (Mo), % | 0 to 1.0 | |
| 0 |
| Nickel (Ni), % | 0 to 3.0 | |
| 0 |
| Silicon (Si), % | 0 to 2.0 | |
| 0 to 0.25 |
| Tin (Sn), % | 0 | |
| 0 to 0.2 |
| Tungsten (W), % | 7.5 to 9.5 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |