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EN 2.4669 Nickel vs. R31538 Cobalt

EN 2.4669 nickel belongs to the nickel alloys classification, while R31538 cobalt belongs to the cobalt alloys. There are 28 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 2.4669 nickel and the bottom bar is R31538 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 16
13 to 23
Fatigue Strength, MPa 390
310 to 480
Poisson's Ratio 0.29
0.29
Reduction in Area, % 31
13 to 22
Shear Modulus, GPa 73
86
Tensile Strength: Ultimate (UTS), MPa 1110
1020 to 1360
Tensile Strength: Yield (Proof), MPa 720
580 to 930

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1380
1360
Melting Onset (Solidus), °C 1330
1290
Specific Heat Capacity, J/kg-K 460
450
Thermal Conductivity, W/m-K 12
13
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 10
8.1
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 260
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
750 to 1920
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 37
34 to 45
Strength to Weight: Bending, points 28
27 to 32
Thermal Diffusivity, mm2/s 3.1
3.5
Thermal Shock Resistance, points 33
25 to 33

Alloy Composition

Aluminum (Al), % 0.4 to 1.0
0
Carbon (C), % 0 to 0.080
0.15 to 0.35
Chromium (Cr), % 14 to 17
26 to 30
Cobalt (Co), % 0 to 1.0
58.7 to 68.9
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 5.0 to 9.0
0 to 0.75
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 65.9 to 77.7
0 to 1.0
Niobium (Nb), % 0.7 to 1.2
0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 2.3 to 2.8
0