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EN 2.4642 Nickel vs. R30605 Cobalt

EN 2.4642 nickel belongs to the nickel alloys classification, while R30605 cobalt belongs to the cobalt alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 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 2.4642 nickel and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
34
Fatigue Strength, MPa 200
260 to 590
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 670
1130 to 1900
Tensile Strength: Yield (Proof), MPa 270
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1360
1410
Melting Onset (Solidus), °C 1320
1330
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 12
9.6
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.3
9.6
Embodied Carbon, kg CO2/kg material 8.2
9.8
Embodied Energy, MJ/kg 120
140
Embodied Water, L/kg 290
450

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 23
33 to 55
Strength to Weight: Bending, points 21
25 to 36
Thermal Diffusivity, mm2/s 3.1
2.5
Thermal Shock Resistance, points 18
31 to 52

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0 to 0.050
0.050 to 0.15
Chromium (Cr), % 27 to 31
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
0 to 3.0
Manganese (Mn), % 0 to 0.5
1.0 to 2.0
Nickel (Ni), % 55.9 to 66
9.0 to 11
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
14 to 16