Grade 15 Babbitt Metal vs. R31538 Cobalt
Grade 15 Babbitt Metal belongs to the otherwise unclassified metals classification, while R31538 cobalt belongs to the cobalt alloys. There are 14 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is grade 15 Babbitt Metal and the bottom bar is R31538 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 23 | |
| 220 |
| Poisson's Ratio | 0.4 | |
| 0.29 |
| Shear Modulus, GPa | 8.2 | |
| 86 |
Thermal Properties
| Latent Heat of Fusion, J/g | 46 | |
| 320 |
| Melting Completion (Liquidus), °C | 280 | |
| 1360 |
| Melting Onset (Solidus), °C | 250 | |
| 1290 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 450 |
| Thermal Expansion, µm/m-K | 26 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 3.6 | |
| 8.1 |
| Embodied Energy, MJ/kg | 47 | |
| 110 |
| Embodied Water, L/kg | 840 | |
| 530 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.2 | |
| 15 |
| Stiffness to Weight: Bending, points | 9.0 | |
| 24 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0050 | |
| 0 |
| Antimony (Sb), % | 14.5 to 17.5 | |
| 0 |
| Arsenic (As), % | 0.8 to 1.4 | |
| 0 |
| Bismuth (Bi), % | 0 to 0.1 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.15 to 0.35 |
| Chromium (Cr), % | 0 | |
| 26 to 30 |
| Cobalt (Co), % | 0 | |
| 58.7 to 68.9 |
| Copper (Cu), % | 0 to 0.6 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.75 |
| Lead (Pb), % | 79 to 83.9 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 5.0 to 7.0 |
| Nickel (Ni), % | 0 | |
| 0 to 1.0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.25 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Tin (Sn), % | 0.8 to 1.2 | |
| 0 |
| Zinc (Zn), % | 0 to 0.0050 | |
| 0 |