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N06002 Nickel vs. R30021 Cobalt

N06002 nickel belongs to the nickel alloys classification, while R30021 cobalt belongs to the cobalt alloys. They have a modest 33% 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 N06002 nickel and the bottom bar is R30021 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 41
9.0
Fatigue Strength, MPa 250
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
86
Tensile Strength: Ultimate (UTS), MPa 760
700
Tensile Strength: Yield (Proof), MPa 310
500

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1360
1350
Melting Onset (Solidus), °C 1260
1190
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 9.9
15
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.4
Embodied Carbon, kg CO2/kg material 9.3
8.0
Embodied Energy, MJ/kg 130
110
Embodied Water, L/kg 270
520

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
57
Resilience: Unit (Modulus of Resilience), kJ/m3 230
570
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 2.6
3.8
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.2 to 0.35
Chromium (Cr), % 20.5 to 23
26 to 29
Cobalt (Co), % 0.5 to 2.5
61.7 to 67.3
Iron (Fe), % 17 to 20
0 to 3.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 8.0 to 10
4.5 to 6.0
Nickel (Ni), % 42.3 to 54
2.0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0.2 to 1.0
0