R30816 Cobalt vs. C95300 Bronze
R30816 cobalt belongs to the cobalt alloys classification, while C95300 bronze belongs to the copper alloys. There are 25 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 R30816 cobalt and the bottom bar is C95300 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 | |
| 120 to 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 110 |
| Elongation at Break, % | 23 | |
| 14 to 25 |
| Poisson's Ratio | 0.3 | |
| 0.34 |
| Shear Modulus, GPa | 81 | |
| 42 |
| Tensile Strength: Ultimate (UTS), MPa | 1020 | |
| 520 to 610 |
| Tensile Strength: Yield (Proof), MPa | 460 | |
| 190 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 230 |
| Melting Completion (Liquidus), °C | 1540 | |
| 1050 |
| Melting Onset (Solidus), °C | 1460 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 420 | |
| 440 |
| Thermal Conductivity, W/m-K | 13 | |
| 63 |
| Thermal Expansion, µm/m-K | 12 | |
| 18 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.1 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 20 | |
| 3.1 |
| Embodied Energy, MJ/kg | 320 | |
| 52 |
| Embodied Water, L/kg | 440 | |
| 390 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 | |
| 73 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 510 | |
| 170 to 420 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 22 | |
| 19 |
| Strength to Weight: Axial, points | 31 | |
| 17 to 21 |
| Strength to Weight: Bending, points | 25 | |
| 17 to 19 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 17 |
| Thermal Shock Resistance, points | 28 | |
| 19 to 22 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 9.0 to 11 |
| Carbon (C), % | 0.32 to 0.42 | |
| 0 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Cobalt (Co), % | 40 to 49.8 | |
| 0 |
| Copper (Cu), % | 0 | |
| 86.5 to 90.2 |
| Iron (Fe), % | 0 to 5.0 | |
| 0.8 to 1.5 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 19 to 21 | |
| 0 |
| Niobium (Nb), % | 3.5 to 4.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tantalum (Ta), % | 3.5 to 4.5 | |
| 0 |
| Tungsten (W), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 1.0 |