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R31537 Cobalt vs. N08026 Nickel

R31537 cobalt belongs to the cobalt alloys classification, while N08026 nickel belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. 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 R31537 cobalt and the bottom bar is N08026 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 14 to 23
34
Fatigue Strength, MPa 310 to 480
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 87
80
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
620
Tensile Strength: Yield (Proof), MPa 590 to 940
270

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1290
1380
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.7

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
7.2
Embodied Energy, MJ/kg 110
98
Embodied Water, L/kg 530
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
170
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33 to 44
21
Strength to Weight: Bending, points 26 to 32
20
Thermal Diffusivity, mm2/s 3.4
3.2
Thermal Shock Resistance, points 24 to 32
15

Alloy Composition

Carbon (C), % 0 to 0.14
0 to 0.030
Chromium (Cr), % 26 to 30
22 to 26
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 0 to 0.75
24.4 to 37.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 5.0 to 7.0
5.0 to 6.7
Nickel (Ni), % 0 to 1.0
33 to 37.2
Nitrogen (N), % 0 to 0.25
0.1 to 0.16
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0
0 to 0.030