K93600 Alloy vs. R31539 Cobalt
K93600 alloy belongs to the iron alloys classification, while R31539 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 R31539 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 220 |
| Elongation at Break, % | 5.0 to 35 | |
| 13 to 22 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 810 | |
| 1000 to 1340 |
| Tensile Strength: Yield (Proof), MPa | 280 to 750 | |
| 590 to 940 |
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 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 2050 | |
| 780 to 2000 |
| Stiffness to Weight: Axial, points | 9.4 | |
| 15 |
| Stiffness to Weight: Bending, points | 21 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 28 | |
| 33 to 44 |
| 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 | |
| 24 to 32 |