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Grade CX2MW Nickel vs. R31233 Cobalt

Grade CX2MW nickel belongs to the nickel alloys classification, while R31233 cobalt belongs to the cobalt alloys. They have 41% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade CX2MW nickel and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 34
17
Fatigue Strength, MPa 260
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
85
Tensile Strength: Ultimate (UTS), MPa 620
1020
Tensile Strength: Yield (Proof), MPa 350
420

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1550
1350
Melting Onset (Solidus), °C 1490
1330
Specific Heat Capacity, J/kg-K 430
440
Thermal Conductivity, W/m-K 10
12
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 12
8.4
Embodied Energy, MJ/kg 170
110
Embodied Water, L/kg 290
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
140
Resilience: Unit (Modulus of Resilience), kJ/m3 290
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 19
33
Strength to Weight: Bending, points 18
26
Thermal Diffusivity, mm2/s 2.7
3.2
Thermal Shock Resistance, points 17
25

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0 to 0.020
0.020 to 0.1
Chromium (Cr), % 20 to 22.5
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Iron (Fe), % 2.0 to 6.0
1.0 to 5.0
Manganese (Mn), % 0 to 1.0
0.1 to 1.5
Molybdenum (Mo), % 12.5 to 14.5
4.0 to 6.0
Nickel (Ni), % 51.3 to 63
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.8
0.050 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 2.5 to 3.5
1.0 to 3.0
Vanadium (V), % 0 to 0.35
0