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R31538 Cobalt vs. Nickel Beryllium 360

R31538 cobalt belongs to the cobalt alloys classification, while nickel beryllium 360 belongs to the nickel alloys. There are 23 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 R31538 cobalt and the bottom bar is nickel beryllium 360.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 13 to 23
1.0 to 30
Fatigue Strength, MPa 310 to 480
260 to 710
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 86
77
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
780 to 1860
Tensile Strength: Yield (Proof), MPa 580 to 930
380 to 1590

Thermal Properties

Melting Completion (Liquidus), °C 1360
1330
Melting Onset (Solidus), °C 1290
1200
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
48
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
5.4

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.3

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
12 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
360 to 3440
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 34 to 45
26 to 62
Strength to Weight: Bending, points 27 to 32
23 to 41
Thermal Diffusivity, mm2/s 3.5
13
Thermal Shock Resistance, points 25 to 33
19 to 46

Comparable Variants