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EN 2.4642 Nickel vs. R30012 Cobalt

EN 2.4642 nickel belongs to the nickel alloys classification, while R30012 cobalt belongs to the cobalt 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 (5, in this case) are not shown.

For each property being compared, the top bar is EN 2.4642 nickel and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 34
1.0
Fatigue Strength, MPa 200
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
86
Tensile Strength: Ultimate (UTS), MPa 670
830
Tensile Strength: Yield (Proof), MPa 270
650

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1360
1470
Melting Onset (Solidus), °C 1320
1280
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 14
12

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 120
120
Embodied Water, L/kg 290
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 180
960
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 23
26
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 3.1
3.8
Thermal Shock Resistance, points 18
23

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0 to 0.050
1.4 to 2.0
Chromium (Cr), % 27 to 31
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
0 to 3.0
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 55.9 to 66
0 to 3.0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 0
7.5 to 9.5