R30605 Cobalt vs. Nickel Beryllium 360
R30605 cobalt belongs to the cobalt alloys classification, while nickel beryllium 360 belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is R30605 cobalt and the bottom bar is nickel beryllium 360.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 200 |
| Elongation at Break, % | 34 | |
| 1.0 to 30 |
| Fatigue Strength, MPa | 260 to 590 | |
| 260 to 710 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 81 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 1130 to 1900 | |
| 780 to 1860 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1600 | |
| 380 to 1590 |
Thermal Properties
| Melting Completion (Liquidus), °C | 1410 | |
| 1330 |
| Melting Onset (Solidus), °C | 1330 | |
| 1200 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 460 |
| Thermal Conductivity, W/m-K | 9.6 | |
| 48 |
| Thermal Expansion, µm/m-K | 12 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 5.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 5.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.6 | |
| 8.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 13 |
| Stiffness to Weight: Bending, points | 21 | |
| 24 |
| Strength to Weight: Axial, points | 33 to 55 | |
| 26 to 62 |
| Strength to Weight: Bending, points | 25 to 36 | |
| 23 to 41 |
| Thermal Diffusivity, mm2/s | 2.5 | |
| 13 |
| Thermal Shock Resistance, points | 31 to 52 | |
| 19 to 46 |