ASTM A387 Grade 12 Steel vs. Nickel Beryllium 360
ASTM A387 grade 12 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 (8, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 12 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, % | 25 | |
| 1.0 to 30 |
| Fatigue Strength, MPa | 190 to 230 | |
| 260 to 710 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 300 to 330 | |
| 510 to 1100 |
| Tensile Strength: Ultimate (UTS), MPa | 470 to 520 | |
| 780 to 1860 |
| Tensile Strength: Yield (Proof), MPa | 260 to 310 | |
| 380 to 1590 |
Thermal Properties
| Melting Completion (Liquidus), °C | 1470 | |
| 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 | 7.2 | |
| 5.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 5.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 8.3 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 110 | |
| 12 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 to 250 | |
| 360 to 3440 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 18 | |
| 26 to 62 |
| Strength to Weight: Bending, points | 17 to 18 | |
| 23 to 41 |
| Thermal Diffusivity, mm2/s | 12 | |
| 13 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 19 to 46 |