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Nickel 242 vs. R31539 Cobalt

Nickel 242 belongs to the nickel alloys classification, while R31539 cobalt belongs to the cobalt alloys. 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 nickel 242 and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 45
13 to 22
Fatigue Strength, MPa 300
310 to 480
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 84
86
Tensile Strength: Ultimate (UTS), MPa 820
1000 to 1340
Tensile Strength: Yield (Proof), MPa 350
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1380
1360
Melting Onset (Solidus), °C 1290
1290
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 11
13
Thermal Expansion, µm/m-K 11
13

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 9.0
8.4
Embodied Carbon, kg CO2/kg material 14
8.2
Embodied Energy, MJ/kg 180
110
Embodied Water, L/kg 290
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
140 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 280
780 to 2000
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 25
33 to 44
Strength to Weight: Bending, points 21
27 to 32
Thermal Diffusivity, mm2/s 3.1
3.5
Thermal Shock Resistance, points 25
24 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.5
0.3 to 1.0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0 to 0.030
0 to 0.14
Chromium (Cr), % 7.0 to 9.0
26 to 30
Cobalt (Co), % 0 to 1.0
57.7 to 68.7
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 2.0
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Manganese (Mn), % 0 to 0.8
0 to 1.0
Molybdenum (Mo), % 24 to 26
5.0 to 7.0
Nickel (Ni), % 59.3 to 69
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.015
0