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Nickel Beryllium 360 vs. S21640 Stainless Steel

Nickel beryllium 360 belongs to the nickel alloys classification, while S21640 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is nickel beryllium 360 and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 1.0 to 30
46
Fatigue Strength, MPa 260 to 710
320
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 510 to 1100
520
Tensile Strength: Ultimate (UTS), MPa 780 to 1860
740
Tensile Strength: Yield (Proof), MPa 380 to 1590
350

Thermal Properties

Melting Completion (Liquidus), °C 1330
1430
Melting Onset (Solidus), °C 1200
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 48
15
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 5.4
2.8

Otherwise Unclassified Properties

Density, g/cm3 8.3
7.7

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 190
280
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 3440
300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 62
27
Strength to Weight: Bending, points 23 to 41
23
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 19 to 46
16