R30075 Cobalt vs. K93600 Alloy
R30075 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 (12, in this case) are not shown.
For each property being compared, the top bar is R30075 cobalt and the bottom bar is K93600 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 to 250 | |
| 140 |
| Elongation at Break, % | 12 | |
| 5.0 to 35 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 1280 | |
| 480 to 810 |
| Tensile Strength: Yield (Proof), MPa | 480 to 840 | |
| 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 | 12 | |
| 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 | 84 to 140 | |
| 21 to 280 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 1410 | |
| 280 to 2050 |
| Stiffness to Weight: Axial, points | 14 to 17 | |
| 9.4 |
| Stiffness to Weight: Bending, points | 24 to 25 | |
| 21 |
| Strength to Weight: Axial, points | 26 to 42 | |
| 16 to 28 |
| Strength to Weight: Bending, points | 22 to 31 | |
| 17 to 24 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 3.1 |
| Thermal Shock Resistance, points | 21 to 29 | |
| 34 to 57 |