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R31539 Cobalt vs. Monel K-500

R31539 cobalt belongs to the cobalt alloys classification, while Monel K-500 belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is Monel K-500.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
160
Elongation at Break, % 13 to 22
25 to 36
Fatigue Strength, MPa 310 to 480
260 to 560
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 86
61
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
640 to 1100
Tensile Strength: Yield (Proof), MPa 590 to 940
310 to 880

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1360
1350
Melting Onset (Solidus), °C 1290
1320
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 13
18
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.2

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 8.2
8.1
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 530
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
180 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
300 to 2420
Stiffness to Weight: Axial, points 15
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 33 to 44
21 to 35
Strength to Weight: Bending, points 27 to 32
19 to 27
Thermal Diffusivity, mm2/s 3.5
4.8
Thermal Shock Resistance, points 24 to 32
21 to 36

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
2.3 to 3.2
Carbon (C), % 0 to 0.14
0 to 0.18
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
27 to 33
Iron (Fe), % 0 to 0.75
0 to 2.0
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
63 to 70.4
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.35 to 0.85

Comparable Variants