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EN 2.4608 Nickel vs. R31537 Cobalt

EN 2.4608 nickel belongs to the nickel alloys classification, while R31537 cobalt belongs to the cobalt alloys. They have a modest 33% 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 EN 2.4608 nickel and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 34
14 to 23
Fatigue Strength, MPa 200
310 to 480
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
87
Tensile Strength: Ultimate (UTS), MPa 620
1000 to 1340
Tensile Strength: Yield (Proof), MPa 270
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1410
1290
Specific Heat Capacity, J/kg-K 460
450
Thermal Conductivity, W/m-K 11
13
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.4
Embodied Carbon, kg CO2/kg material 8.4
8.1
Embodied Energy, MJ/kg 120
110
Embodied Water, L/kg 270
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 180
780 to 1990
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 20
33 to 44
Strength to Weight: Bending, points 19
26 to 32
Thermal Diffusivity, mm2/s 2.9
3.4
Thermal Shock Resistance, points 16
24 to 32

Alloy Composition

Carbon (C), % 0.030 to 0.080
0 to 0.14
Chromium (Cr), % 24 to 26
26 to 30
Cobalt (Co), % 2.5 to 4.0
58.9 to 69
Iron (Fe), % 11.4 to 23.8
0 to 0.75
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 4.0
5.0 to 7.0
Nickel (Ni), % 44 to 47
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.7 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 2.5 to 4.0
0