R30605 Cobalt vs. Grade 364 Molybdenum
R30605 cobalt belongs to the cobalt alloys classification, while grade 364 molybdenum belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is R30605 cobalt and the bottom bar is grade 364 molybdenum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 310 |
| Elongation at Break, % | 34 | |
| 6.2 to 11 |
| Poisson's Ratio | 0.29 | |
| 0.31 |
| Shear Modulus, GPa | 81 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 1130 to 1900 | |
| 580 to 720 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1600 | |
| 350 to 620 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 370 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 250 |
| Thermal Expansion, µm/m-K | 12 | |
| 7.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.6 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 9.8 | |
| 28 |
| Embodied Energy, MJ/kg | 140 | |
| 330 |
| Embodied Water, L/kg | 450 | |
| 360 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 17 |
| Stiffness to Weight: Bending, points | 21 | |
| 22 |
| Strength to Weight: Axial, points | 33 to 55 | |
| 16 to 20 |
| Strength to Weight: Bending, points | 25 to 36 | |
| 15 to 17 |
| Thermal Shock Resistance, points | 31 to 52 | |
| 19 to 24 |
Alloy Composition
| Carbon (C), % | 0.050 to 0.15 | |
| 0.010 to 0.040 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Cobalt (Co), % | 46.4 to 57 | |
| 0 |
| Iron (Fe), % | 0 to 3.0 | |
| 0 to 0.010 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 99.2 to 99.5 |
| Nickel (Ni), % | 9.0 to 11 | |
| 0 to 0.0050 |
| Nitrogen (N), % | 0 | |
| 0 to 0.0020 |
| Oxygen (O), % | 0 | |
| 0 to 0.030 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0.4 to 0.55 |
| Tungsten (W), % | 14 to 16 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0.060 to 0.12 |