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EN 2.4608 Nickel vs. R31233 Cobalt

EN 2.4608 nickel belongs to the nickel alloys classification, while R31233 cobalt belongs to the cobalt alloys. They have 47% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 2.4608 nickel and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 34
17
Fatigue Strength, MPa 200
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
85
Tensile Strength: Ultimate (UTS), MPa 620
1020
Tensile Strength: Yield (Proof), MPa 270
420

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 11
12
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
8.6
Embodied Carbon, kg CO2/kg material 8.4
8.4
Embodied Energy, MJ/kg 120
110
Embodied Water, L/kg 270
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
140
Resilience: Unit (Modulus of Resilience), kJ/m3 180
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 2.9
3.2
Thermal Shock Resistance, points 16
25

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0.030 to 0.080
0.020 to 0.1
Chromium (Cr), % 24 to 26
23.5 to 27.5
Cobalt (Co), % 2.5 to 4.0
44.7 to 63.3
Iron (Fe), % 11.4 to 23.8
1.0 to 5.0
Manganese (Mn), % 0 to 2.0
0.1 to 1.5
Molybdenum (Mo), % 2.5 to 4.0
4.0 to 6.0
Nickel (Ni), % 44 to 47
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.7 to 1.5
0.050 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 2.5 to 4.0
1.0 to 3.0