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R31539 Cobalt vs. Nickel 601

R31539 cobalt belongs to the cobalt alloys classification, while nickel 601 belongs to the nickel alloys. They have a modest 25% 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 R31539 cobalt and the bottom bar is nickel 601.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 13 to 22
10 to 38
Fatigue Strength, MPa 310 to 480
220 to 380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 86
76
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
660 to 890
Tensile Strength: Yield (Proof), MPa 590 to 940
290 to 800

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1360
1410
Melting Onset (Solidus), °C 1290
1360
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 13
14

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 8.4
8.3
Embodied Carbon, kg CO2/kg material 8.2
8.0
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 530
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
86 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
210 to 1630
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 33 to 44
22 to 30
Strength to Weight: Bending, points 27 to 32
20 to 25
Thermal Diffusivity, mm2/s 3.5
2.8
Thermal Shock Resistance, points 24 to 32
17 to 23

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
1.0 to 1.7
Carbon (C), % 0 to 0.14
0 to 0.1
Chromium (Cr), % 26 to 30
21 to 25
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 0 to 0.75
7.7 to 20
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
58 to 63
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0
0 to 0.015

Comparable Variants