R30035 Cobalt vs. C54400 Bronze
R30035 cobalt belongs to the cobalt alloys classification, while C54400 bronze belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is R30035 cobalt and the bottom bar is C54400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 to 230 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 84 to 89 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1900 | |
| 330 to 720 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 190 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1000 |
| Melting Onset (Solidus), °C | 1320 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 370 |
| Thermal Conductivity, W/m-K | 11 | |
| 86 |
| Thermal Expansion, µm/m-K | 13 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.7 | |
| 19 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 100 | |
| 31 |
| Density, g/cm3 | 8.7 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 2.9 |
| Embodied Energy, MJ/kg | 140 | |
| 48 |
| Embodied Water, L/kg | 410 | |
| 340 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 to 15 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 23 to 24 | |
| 18 |
| Strength to Weight: Axial, points | 29 to 61 | |
| 10 to 22 |
| Strength to Weight: Bending, points | 24 to 39 | |
| 12 to 20 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 26 |
| Thermal Shock Resistance, points | 23 to 46 | |
| 12 to 26 |
Alloy Composition
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| Boron (B), % | 0 to 0.015 | |
| 0 |
| Carbon (C), % | 0 to 0.025 | |
| 0 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Cobalt (Co), % | 29.1 to 39 | |
| 0 |
| Copper (Cu), % | 0 | |
| 85.4 to 91.5 |
| Iron (Fe), % | 0 to 1.0 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 3.5 to 4.5 |
| Manganese (Mn), % | 0 to 0.15 | |
| 0 |
| Molybdenum (Mo), % | 9.0 to 10.5 | |
| 0 |
| Nickel (Ni), % | 33 to 37 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0.010 to 0.5 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Tin (Sn), % | 0 | |
| 3.5 to 4.5 |
| Titanium (Ti), % | 0 to 1.0 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 1.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.5 |