R30605 Cobalt vs. C95500 Bronze
R30605 cobalt belongs to the cobalt alloys classification, while C95500 bronze belongs to the copper alloys. There are 24 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 R30605 cobalt and the bottom bar is C95500 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 120 |
| Elongation at Break, % | 34 | |
| 8.4 to 10 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 81 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 1130 to 1900 | |
| 700 to 850 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1600 | |
| 320 to 470 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 230 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1050 |
| Melting Onset (Solidus), °C | 1330 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 450 |
| Thermal Conductivity, W/m-K | 9.6 | |
| 42 |
| Thermal Expansion, µm/m-K | 12 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 8.8 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.6 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 9.8 | |
| 3.5 |
| Embodied Energy, MJ/kg | 140 | |
| 57 |
| Embodied Water, L/kg | 450 | |
| 390 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 8.0 |
| Stiffness to Weight: Bending, points | 21 | |
| 20 |
| Strength to Weight: Axial, points | 33 to 55 | |
| 24 to 29 |
| Strength to Weight: Bending, points | 25 to 36 | |
| 21 to 24 |
| Thermal Diffusivity, mm2/s | 2.5 | |
| 11 |
| Thermal Shock Resistance, points | 31 to 52 | |
| 24 to 29 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 10 to 11.5 |
| Carbon (C), % | 0.050 to 0.15 | |
| 0 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Cobalt (Co), % | 46.4 to 57 | |
| 0 |
| Copper (Cu), % | 0 | |
| 78 to 84 |
| Iron (Fe), % | 0 to 3.0 | |
| 3.0 to 5.0 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 to 3.5 |
| Nickel (Ni), % | 9.0 to 11 | |
| 3.0 to 5.5 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tungsten (W), % | 14 to 16 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |