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R31233 Cobalt vs. N06920 Nickel

R31233 cobalt belongs to the cobalt alloys classification, while N06920 nickel belongs to the nickel alloys. They have 44% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is R31233 cobalt and the bottom bar is N06920 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 17
39
Fatigue Strength, MPa 220
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 85
82
Tensile Strength: Ultimate (UTS), MPa 1020
730
Tensile Strength: Yield (Proof), MPa 420
270

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1350
1500
Melting Onset (Solidus), °C 1330
1440
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 12
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.6

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.6
Embodied Carbon, kg CO2/kg material 8.4
9.4
Embodied Energy, MJ/kg 110
130
Embodied Water, L/kg 480
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
230
Resilience: Unit (Modulus of Resilience), kJ/m3 410
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 33
24
Strength to Weight: Bending, points 26
21
Thermal Diffusivity, mm2/s 3.2
2.8
Thermal Shock Resistance, points 25
19

Alloy Composition

Boron (B), % 0 to 0.015
0
Carbon (C), % 0.020 to 0.1
0 to 0.030
Chromium (Cr), % 23.5 to 27.5
20.5 to 23
Cobalt (Co), % 44.7 to 63.3
0 to 5.0
Iron (Fe), % 1.0 to 5.0
17 to 20
Manganese (Mn), % 0.1 to 1.5
0 to 1.0
Molybdenum (Mo), % 4.0 to 6.0
8.0 to 10
Nickel (Ni), % 7.0 to 11
36.9 to 53.5
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.050 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.0 to 3.0
1.0 to 3.0