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EN 2.4964 Cobalt vs. EN 2.4851 Nickel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 2.4851 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 (4, 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 2.4851 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 40
34
Fatigue Strength, MPa 220
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 86
76
Tensile Strength: Ultimate (UTS), MPa 960
650
Tensile Strength: Yield (Proof), MPa 390
230

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1630
1360
Melting Onset (Solidus), °C 1550
1310
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
1.6

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.2
Embodied Carbon, kg CO2/kg material 9.8
8.1
Embodied Energy, MJ/kg 140
120
Embodied Water, L/kg 450
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
170
Resilience: Unit (Modulus of Resilience), kJ/m3 340
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 28
22
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 3.9
2.9
Thermal Shock Resistance, points 25
17

Alloy Composition

Aluminum (Al), % 0
1.0 to 1.7
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.050 to 0.15
0.030 to 0.1
Chromium (Cr), % 19 to 21
21 to 25
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 3.0
7.7 to 18
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 9.0 to 11
58 to 63
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
Titanium (Ti), % 0
0 to 0.5
Tungsten (W), % 14 to 16
0