R30816 Cobalt vs. C95400 Bronze
R30816 cobalt belongs to the cobalt alloys classification, while C95400 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 C95400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 | |
| 160 to 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 110 |
| Elongation at Break, % | 23 | |
| 8.1 to 16 |
| Poisson's Ratio | 0.3 | |
| 0.34 |
| Shear Modulus, GPa | 81 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 1020 | |
| 600 to 710 |
| Tensile Strength: Yield (Proof), MPa | 460 | |
| 240 to 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 230 |
| Melting Completion (Liquidus), °C | 1540 | |
| 1040 |
| Melting Onset (Solidus), °C | 1460 | |
| 1030 |
| Specific Heat Capacity, J/kg-K | 420 | |
| 440 |
| Thermal Conductivity, W/m-K | 13 | |
| 59 |
| Thermal Expansion, µm/m-K | 12 | |
| 18 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.1 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 20 | |
| 3.2 |
| Embodied Energy, MJ/kg | 320 | |
| 53 |
| Embodied Water, L/kg | 440 | |
| 390 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 | |
| 48 to 75 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 510 | |
| 250 to 560 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 22 | |
| 20 |
| Strength to Weight: Axial, points | 31 | |
| 20 to 24 |
| Strength to Weight: Bending, points | 25 | |
| 19 to 22 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 16 |
| Thermal Shock Resistance, points | 28 | |
| 21 to 25 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 10 to 11.5 |
| Carbon (C), % | 0.32 to 0.42 | |
| 0 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Cobalt (Co), % | 40 to 49.8 | |
| 0 |
| Copper (Cu), % | 0 | |
| 83 to 87 |
| Iron (Fe), % | 0 to 5.0 | |
| 3.0 to 5.0 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 19 to 21 | |
| 0 to 1.5 |
| 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 0.5 |