Annealed R31537 Cobalt vs. Annealed SAE-AISI M62
Annealed R31537 cobalt belongs to the cobalt alloys classification, while annealed SAE-AISI M62 belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is annealed R31537 cobalt and the bottom bar is annealed SAE-AISI M62.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 | |
| 200 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 87 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 | |
| 830 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 260 |
| Melting Completion (Liquidus), °C | 1360 | |
| 1650 |
| Melting Onset (Solidus), °C | 1290 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 430 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.4 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 10 |
| Embodied Energy, MJ/kg | 110 | |
| 150 |
| Embodied Water, L/kg | 530 | |
| 110 |
Common Calculations
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 33 | |
| 27 |
| Strength to Weight: Bending, points | 26 | |
| 23 |
| Thermal Shock Resistance, points | 24 | |
| 24 |
Alloy Composition
| Carbon (C), % | 0 to 0.14 | |
| 1.3 to 1.4 |
| Chromium (Cr), % | 26 to 30 | |
| 3.5 to 4.0 |
| Cobalt (Co), % | 58.9 to 69 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 to 0.75 | |
| 73.6 to 77.4 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.15 to 0.4 |
| Molybdenum (Mo), % | 5.0 to 7.0 | |
| 10 to 11 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.15 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 5.8 to 6.5 |
| Vanadium (V), % | 0 | |
| 1.8 to 2.1 |