R31539 Cobalt vs. K93600 Alloy
R31539 cobalt belongs to the cobalt alloys classification, while K93600 alloy belongs to the iron alloys. There are 19 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 R31539 cobalt and the bottom bar is K93600 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 | |
| 140 |
| Elongation at Break, % | 13 to 22 | |
| 5.0 to 35 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1340 | |
| 480 to 810 |
| Tensile Strength: Yield (Proof), MPa | 590 to 940 | |
| 280 to 750 |
Thermal Properties
| Melting Onset (Solidus), °C | 1290 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 520 |
| Thermal Conductivity, W/m-K | 13 | |
| 13 |
| Thermal Expansion, µm/m-K | 13 | |
| 7.3 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
| 2.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.4 | |
| 8.1 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 190 | |
| 21 to 280 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 780 to 2000 | |
| 280 to 2050 |
| Stiffness to Weight: Axial, points | 15 | |
| 9.4 |
| Stiffness to Weight: Bending, points | 24 | |
| 21 |
| Strength to Weight: Axial, points | 33 to 44 | |
| 16 to 28 |
| Strength to Weight: Bending, points | 27 to 32 | |
| 17 to 24 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 3.1 |
| Thermal Shock Resistance, points | 24 to 32 | |
| 34 to 57 |