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R31538 Cobalt vs. Nickel 201

R31538 cobalt belongs to the cobalt alloys classification, while nickel 201 belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is nickel 201.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
180
Elongation at Break, % 13 to 23
4.5 to 45
Fatigue Strength, MPa 310 to 480
42 to 210
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 86
70
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
390 to 660
Tensile Strength: Yield (Proof), MPa 580 to 930
80 to 510

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1290
1440
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 13
78
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
19

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 8.1
11
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 530
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
25 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
17 to 720
Stiffness to Weight: Axial, points 15
11
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 34 to 45
12 to 20
Strength to Weight: Bending, points 27 to 32
13 to 19
Thermal Diffusivity, mm2/s 3.5
20
Thermal Shock Resistance, points 25 to 33
11 to 19

Alloy Composition

Carbon (C), % 0.15 to 0.35
0 to 0.020
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.7 to 68.9
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.75
0 to 0.4
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
99 to 100
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0
0 to 0.010

Comparable Variants