R30075 Cobalt vs. Grade 8 Babbitt Metal
R30075 cobalt belongs to the cobalt alloys classification, while grade 8 Babbitt Metal belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is R30075 cobalt and the bottom bar is grade 8 Babbitt Metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 to 250 | |
| 24 |
| Poisson's Ratio | 0.29 | |
| 0.41 |
| Shear Modulus, GPa | 82 to 98 | |
| 8.5 |
| Tensile Strength: Yield (Proof), MPa | 480 to 840 | |
| 23 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 46 |
| Melting Completion (Liquidus), °C | 1360 | |
| 270 |
| Melting Onset (Solidus), °C | 1290 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 150 |
| Thermal Conductivity, W/m-K | 13 | |
| 24 |
| Thermal Expansion, µm/m-K | 12 | |
| 24 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.4 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 3.9 |
| Embodied Energy, MJ/kg | 110 | |
| 53 |
| Embodied Water, L/kg | 530 | |
| 840 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 1410 | |
| 11 |
| Stiffness to Weight: Axial, points | 14 to 17 | |
| 1.3 |
| Stiffness to Weight: Bending, points | 24 to 25 | |
| 9.2 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 16 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.1 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 | |
| 14 to 16 |
| Arsenic (As), % | 0 | |
| 0.3 to 0.6 |
| Bismuth (Bi), % | 0 | |
| 0 to 0.1 |
| Boron (B), % | 0 to 0.010 | |
| 0 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0 to 0.35 | |
| 0 |
| Chromium (Cr), % | 27 to 30 | |
| 0 |
| Cobalt (Co), % | 58.7 to 68 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 0 to 0.75 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 77.1 to 81.2 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 5.0 to 7.0 | |
| 0 |
| Nickel (Ni), % | 0 to 0.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Tin (Sn), % | 0 | |
| 4.5 to 5.5 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 |
| Tungsten (W), % | 0 to 0.2 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0050 |