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R31538 Cobalt vs. N06210 Nickel

R31538 cobalt belongs to the cobalt alloys classification, while N06210 nickel belongs to the nickel alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is N06210 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 13 to 23
51
Fatigue Strength, MPa 310 to 480
320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
85
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
780
Tensile Strength: Yield (Proof), MPa 580 to 930
350

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1360
1570
Melting Onset (Solidus), °C 1290
1510
Specific Heat Capacity, J/kg-K 450
420
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.1
17
Embodied Energy, MJ/kg 110
250
Embodied Water, L/kg 530
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
320
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
280
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 34 to 45
24
Strength to Weight: Bending, points 27 to 32
21
Thermal Shock Resistance, points 25 to 33
22

Alloy Composition

Carbon (C), % 0.15 to 0.35
0 to 0.015
Chromium (Cr), % 26 to 30
18 to 20
Cobalt (Co), % 58.7 to 68.9
0 to 1.0
Iron (Fe), % 0 to 0.75
0 to 1.0
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 5.0 to 7.0
18 to 20
Nickel (Ni), % 0 to 1.0
54.8 to 62.5
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0
0 to 0.020
Tantalum (Ta), % 0
1.5 to 2.2
Vanadium (V), % 0
0 to 0.35