SAE-AISI 4340 Steel vs. Nickel Beryllium 360
SAE-AISI 4340 steel belongs to the iron alloys classification, while nickel beryllium 360 belongs to the nickel alloys. There are 24 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 SAE-AISI 4340 steel and the bottom bar is nickel beryllium 360.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 12 to 22 | |
| 1.0 to 30 |
| Fatigue Strength, MPa | 330 to 740 | |
| 260 to 710 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 430 to 770 | |
| 510 to 1100 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 1280 | |
| 780 to 1860 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1150 | |
| 380 to 1590 |
Thermal Properties
| Melting Completion (Liquidus), °C | 1460 | |
| 1330 |
| Melting Onset (Solidus), °C | 1420 | |
| 1200 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Conductivity, W/m-K | 44 | |
| 48 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 5.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 5.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 8.3 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 79 to 170 | |
| 12 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 590 to 3490 | |
| 360 to 3440 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 24 to 45 | |
| 26 to 62 |
| Strength to Weight: Bending, points | 22 to 33 | |
| 23 to 41 |
| Thermal Diffusivity, mm2/s | 12 | |
| 13 |
| Thermal Shock Resistance, points | 20 to 38 | |
| 19 to 46 |