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EN 2.4964 Cobalt vs. EN 2.4665 Nickel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 2.4665 nickel belongs to the nickel alloys. They have a modest 34% 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 2.4665 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 40
34
Fatigue Strength, MPa 220
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 86
81
Tensile Strength: Ultimate (UTS), MPa 960
790
Tensile Strength: Yield (Proof), MPa 390
300

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1630
1460
Melting Onset (Solidus), °C 1550
1410
Specific Heat Capacity, J/kg-K 400
450
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
8.4
Embodied Carbon, kg CO2/kg material 9.8
9.2
Embodied Energy, MJ/kg 140
130
Embodied Water, L/kg 450
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
210
Resilience: Unit (Modulus of Resilience), kJ/m3 340
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 28
26
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.9
3.2
Thermal Shock Resistance, points 25
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.050 to 0.15
0.050 to 0.15
Chromium (Cr), % 19 to 21
20.5 to 23
Cobalt (Co), % 46.4 to 58
0.5 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 3.0
17 to 20
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 9.0 to 11
40.3 to 53.8
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 14 to 16
0.2 to 1.0