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R31233 Cobalt vs. K93600 Alloy

R31233 cobalt belongs to the cobalt alloys classification, while K93600 alloy belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R31233 cobalt and the bottom bar is K93600 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
140
Elongation at Break, % 17
5.0 to 35
Tensile Strength: Ultimate (UTS), MPa 1020
480 to 810
Tensile Strength: Yield (Proof), MPa 420
280 to 750

Thermal Properties

Melting Onset (Solidus), °C 1330
1430
Specific Heat Capacity, J/kg-K 440
520
Thermal Conductivity, W/m-K 12
13
Thermal Expansion, µm/m-K 13
7.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.4

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.1

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
21 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 410
280 to 2050
Stiffness to Weight: Axial, points 14
9.4
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 33
16 to 28
Strength to Weight: Bending, points 26
17 to 24
Thermal Diffusivity, mm2/s 3.2
3.1
Thermal Shock Resistance, points 25
34 to 57