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EN 2.4964 Cobalt vs. EN 2.4878 Nickel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 2.4878 nickel belongs to the nickel 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 2.4964 cobalt and the bottom bar is EN 2.4878 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 40
13 to 17
Fatigue Strength, MPa 220
400 to 410
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
78
Tensile Strength: Ultimate (UTS), MPa 960
1210 to 1250
Tensile Strength: Yield (Proof), MPa 390
740 to 780

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Melting Completion (Liquidus), °C 1630
1370
Melting Onset (Solidus), °C 1550
1320
Specific Heat Capacity, J/kg-K 400
460
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.3
Embodied Carbon, kg CO2/kg material 9.8
10
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
150 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 340
1370 to 1540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
41 to 42
Strength to Weight: Bending, points 23
31
Thermal Diffusivity, mm2/s 3.9
2.8
Thermal Shock Resistance, points 25
37 to 39

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.010 to 0.015
Carbon (C), % 0.050 to 0.15
0.030 to 0.070
Chromium (Cr), % 19 to 21
23 to 25
Cobalt (Co), % 46.4 to 58
19 to 21
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 3.0
0 to 1.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 9.0 to 11
43.6 to 52.2
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0070
Tantalum (Ta), % 0
0 to 0.050
Titanium (Ti), % 0
2.8 to 3.2
Tungsten (W), % 14 to 16
0
Zirconium (Zr), % 0
0.030 to 0.070