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R31539 Cobalt vs. N06200 Nickel

R31539 cobalt belongs to the cobalt alloys classification, while N06200 nickel belongs to the nickel alloys. They have a modest 31% 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 (5, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is N06200 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 13 to 22
51
Fatigue Strength, MPa 310 to 480
290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
84
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
780
Tensile Strength: Yield (Proof), MPa 590 to 940
320

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1360
1500
Melting Onset (Solidus), °C 1290
1450
Specific Heat Capacity, J/kg-K 450
430
Thermal Conductivity, W/m-K 13
9.1
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.4

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 8.2
12
Embodied Energy, MJ/kg 110
160
Embodied Water, L/kg 530
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
320
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
240
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 33 to 44
25
Strength to Weight: Bending, points 27 to 32
22
Thermal Diffusivity, mm2/s 3.5
2.4
Thermal Shock Resistance, points 24 to 32
21

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0 to 0.5
Carbon (C), % 0 to 0.14
0 to 0.010
Chromium (Cr), % 26 to 30
22 to 24
Cobalt (Co), % 57.7 to 68.7
0 to 2.0
Copper (Cu), % 0
1.3 to 1.9
Iron (Fe), % 0 to 0.75
0 to 3.0
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
0 to 0.010
Molybdenum (Mo), % 5.0 to 7.0
15 to 17
Nickel (Ni), % 0 to 1.0
51 to 61.7
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0
0 to 0.010