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EN 2.4650 Nickel vs. R30605 Cobalt

EN 2.4650 nickel belongs to the nickel alloys classification, while R30605 cobalt belongs to the cobalt alloys. They have 51% of their average alloy composition in common. 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 2.4650 nickel and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 34
34
Fatigue Strength, MPa 480
260 to 590
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 1090
1130 to 1900
Tensile Strength: Yield (Proof), MPa 650
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1350
1330
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 12
9.6
Thermal Expansion, µm/m-K 11
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 8.5
9.6
Embodied Carbon, kg CO2/kg material 10
9.8
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 360
450

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 36
33 to 55
Strength to Weight: Bending, points 28
25 to 36
Thermal Diffusivity, mm2/s 3.1
2.5
Thermal Shock Resistance, points 33
31 to 52

Alloy Composition

Aluminum (Al), % 0.3 to 0.6
0
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0.040 to 0.080
0.050 to 0.15
Chromium (Cr), % 19 to 21
19 to 21
Cobalt (Co), % 19 to 21
46.4 to 57
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.7
0 to 3.0
Manganese (Mn), % 0 to 0.6
1.0 to 2.0
Molybdenum (Mo), % 5.6 to 6.1
0
Nickel (Ni), % 46.9 to 54.2
9.0 to 11
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.0070
0 to 0.030
Titanium (Ti), % 1.9 to 2.4
0
Tungsten (W), % 0
14 to 16