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Nickel Beryllium 360 vs. R30012 Cobalt

Nickel beryllium 360 belongs to the nickel alloys classification, while R30012 cobalt belongs to the cobalt 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 nickel beryllium 360 and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 1.0 to 30
1.0
Fatigue Strength, MPa 260 to 710
320
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 77
86
Tensile Strength: Ultimate (UTS), MPa 780 to 1860
830
Tensile Strength: Yield (Proof), MPa 380 to 1590
650

Thermal Properties

Melting Completion (Liquidus), °C 1330
1470
Melting Onset (Solidus), °C 1200
1280
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 48
15
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 5.4
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 190
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 3440
960
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26 to 62
26
Strength to Weight: Bending, points 23 to 41
22
Thermal Diffusivity, mm2/s 13
3.8
Thermal Shock Resistance, points 19 to 46
23