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N06920 Nickel vs. R30006 Cobalt

N06920 nickel belongs to the nickel alloys classification, while R30006 cobalt belongs to the cobalt alloys. They have a modest 30% 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 (6, in this case) are not shown.

For each property being compared, the top bar is N06920 nickel and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 39
1.0
Fatigue Strength, MPa 220
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 82
85
Tensile Strength: Ultimate (UTS), MPa 730
900
Tensile Strength: Yield (Proof), MPa 270
540

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1500
1400
Melting Onset (Solidus), °C 1440
1290
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
1.7

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.6
Embodied Carbon, kg CO2/kg material 9.4
7.8
Embodied Energy, MJ/kg 130
110
Embodied Water, L/kg 270
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 180
670
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 2.8
3.9
Thermal Shock Resistance, points 19
26

Alloy Composition

Carbon (C), % 0 to 0.030
0.9 to 1.4
Chromium (Cr), % 20.5 to 23
27 to 32
Cobalt (Co), % 0 to 5.0
48.6 to 68.1
Iron (Fe), % 17 to 20
0 to 3.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 8.0 to 10
0 to 1.0
Nickel (Ni), % 36.9 to 53.5
0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 1.0 to 3.0
4.0 to 6.0