K93600 Alloy vs. R31538 Cobalt
K93600 alloy belongs to the iron alloys classification, while R31538 cobalt belongs to the cobalt 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 K93600 alloy and the bottom bar is R31538 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 220 |
| Elongation at Break, % | 5.0 to 35 | |
| 13 to 23 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 810 | |
| 1020 to 1360 |
| Tensile Strength: Yield (Proof), MPa | 280 to 750 | |
| 580 to 930 |
Thermal Properties
| Melting Onset (Solidus), °C | 1430 | |
| 1290 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 450 |
| Thermal Conductivity, W/m-K | 13 | |
| 13 |
| Thermal Expansion, µm/m-K | 7.3 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.4 | |
| 2.1 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.1 | |
| 8.4 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 21 to 280 | |
| 140 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 2050 | |
| 750 to 1920 |
| Stiffness to Weight: Axial, points | 9.4 | |
| 15 |
| Stiffness to Weight: Bending, points | 21 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 28 | |
| 34 to 45 |
| Strength to Weight: Bending, points | 17 to 24 | |
| 27 to 32 |
| Thermal Diffusivity, mm2/s | 3.1 | |
| 3.5 |
| Thermal Shock Resistance, points | 34 to 57 | |
| 25 to 33 |