R30008 Cobalt vs. Nickel Beryllium 360
R30008 cobalt belongs to the cobalt alloys classification, while nickel beryllium 360 belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is R30008 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, % | 1.1 to 73 | |
| 1.0 to 30 |
| Fatigue Strength, MPa | 320 to 530 | |
| 260 to 710 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 83 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 950 to 1700 | |
| 780 to 1860 |
| Tensile Strength: Yield (Proof), MPa | 500 to 1080 | |
| 380 to 1590 |
Thermal Properties
| Melting Completion (Liquidus), °C | 1400 | |
| 1330 |
| Melting Onset (Solidus), °C | 1330 | |
| 1200 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 460 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.4 | |
| 8.3 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 590 to 2720 | |
| 360 to 3440 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 31 to 56 | |
| 26 to 62 |
| Strength to Weight: Bending, points | 25 to 37 | |
| 23 to 41 |
| Thermal Shock Resistance, points | 25 to 44 | |
| 19 to 46 |