ASTM B817 Type II vs. Nickel Beryllium 360
ASTM B817 type II belongs to the titanium alloys classification, while nickel beryllium 360 belongs to the nickel 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 ASTM B817 type II and the bottom bar is nickel beryllium 360.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 200 |
| Elongation at Break, % | 3.0 to 13 | |
| 1.0 to 30 |
| Fatigue Strength, MPa | 390 to 530 | |
| 260 to 710 |
| Poisson's Ratio | 0.32 | |
| 0.3 |
| Shear Modulus, GPa | 40 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 780 to 1860 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 380 to 1590 |
Thermal Properties
| Melting Completion (Liquidus), °C | 1580 | |
| 1330 |
| Melting Onset (Solidus), °C | 1530 | |
| 1200 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 460 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.6 | |
| 8.3 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 12 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2890 to 3890 | |
| 360 to 3440 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 24 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 26 to 62 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 23 to 41 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 19 to 46 |