Grade 8 Babbitt Metal vs. R30075 Cobalt
Grade 8 Babbitt Metal belongs to the otherwise unclassified metals classification, while R30075 cobalt belongs to the cobalt alloys. 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 grade 8 Babbitt Metal and the bottom bar is R30075 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 24 | |
| 210 to 250 |
| Poisson's Ratio | 0.41 | |
| 0.29 |
| Shear Modulus, GPa | 8.5 | |
| 82 to 98 |
| Tensile Strength: Yield (Proof), MPa | 23 | |
| 480 to 840 |
Thermal Properties
| Latent Heat of Fusion, J/g | 46 | |
| 320 |
| Melting Completion (Liquidus), °C | 270 | |
| 1360 |
| Melting Onset (Solidus), °C | 240 | |
| 1290 |
| Specific Heat Capacity, J/kg-K | 150 | |
| 450 |
| Thermal Conductivity, W/m-K | 24 | |
| 13 |
| Thermal Expansion, µm/m-K | 24 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 3.9 | |
| 8.1 |
| Embodied Energy, MJ/kg | 53 | |
| 110 |
| Embodied Water, L/kg | 840 | |
| 530 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 11 | |
| 560 to 1410 |
| Stiffness to Weight: Axial, points | 1.3 | |
| 14 to 17 |
| Stiffness to Weight: Bending, points | 9.2 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 16 | |
| 3.5 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0050 | |
| 0 to 0.1 |
| Antimony (Sb), % | 14 to 16 | |
| 0 |
| Arsenic (As), % | 0.3 to 0.6 | |
| 0 |
| Bismuth (Bi), % | 0 to 0.1 | |
| 0 |
| Boron (B), % | 0 | |
| 0 to 0.010 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.35 |
| Chromium (Cr), % | 0 | |
| 27 to 30 |
| Cobalt (Co), % | 0 | |
| 58.7 to 68 |
| Copper (Cu), % | 0 to 0.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.75 |
| Lead (Pb), % | 77.1 to 81.2 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 5.0 to 7.0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Tin (Sn), % | 4.5 to 5.5 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.1 |
| Tungsten (W), % | 0 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0 to 0.0050 | |
| 0 |