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EN 2.4964 Cobalt vs. EN 2.4642 Nickel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 2.4642 nickel belongs to the nickel alloys. They have a modest 32% 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is EN 2.4642 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 40
34
Fatigue Strength, MPa 220
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 86
78
Tensile Strength: Ultimate (UTS), MPa 960
670
Tensile Strength: Yield (Proof), MPa 390
270

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1630
1360
Melting Onset (Solidus), °C 1550
1320
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
1.6

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
180
Resilience: Unit (Modulus of Resilience), kJ/m3 340
180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
23
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 3.9
3.1
Thermal Shock Resistance, points 25
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.050 to 0.15
0 to 0.050
Chromium (Cr), % 19 to 21
27 to 31
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 3.0
7.0 to 11
Manganese (Mn), % 0 to 2.0
0 to 0.5
Nickel (Ni), % 9.0 to 11
55.9 to 66
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 14 to 16
0