ASTM B631 Class B vs. Nickel Beryllium 360
ASTM B631 class B belongs to the otherwise unclassified metals classification, while nickel beryllium 360 belongs to the nickel alloys. There are 13 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is ASTM B631 class B and the bottom bar is nickel beryllium 360.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 200 |
| Poisson's Ratio | 0.31 | |
| 0.3 |
| Shear Modulus, GPa | 78 to 79 | |
| 77 |
Thermal Properties
| Melting Completion (Liquidus), °C | 2460 to 2480 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 170 | |
| 460 |
| Thermal Conductivity, W/m-K | 450 | |
| 48 |
| Thermal Expansion, µm/m-K | 12 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 50 to 53 | |
| 5.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 32 to 34 | |
| 5.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 14 | |
| 8.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 24 |
| Thermal Diffusivity, mm2/s | 190 | |
| 13 |