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R30003 Cobalt vs. N10665 Nickel

R30003 cobalt belongs to the cobalt alloys classification, while N10665 nickel belongs to the nickel alloys. They have a modest 25% 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 R30003 cobalt and the bottom bar is N10665 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 10 to 73
45
Fatigue Strength, MPa 320 to 560
340
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 83
84
Tensile Strength: Ultimate (UTS), MPa 970 to 1720
860
Tensile Strength: Yield (Proof), MPa 510 to 1090
400

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Melting Completion (Liquidus), °C 1400
1620
Melting Onset (Solidus), °C 1440
1570
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.2

Otherwise Unclassified Properties

Base Metal Price, % relative 95
75
Density, g/cm3 8.4
9.3
Embodied Carbon, kg CO2/kg material 8.0
15
Embodied Energy, MJ/kg 110
200
Embodied Water, L/kg 400
270

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 2790
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 32 to 57
26
Strength to Weight: Bending, points 26 to 38
22
Thermal Diffusivity, mm2/s 3.3
3.1
Thermal Shock Resistance, points 26 to 45
27

Alloy Composition

Boron (B), % 0 to 0.1
0
Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 19 to 21
0 to 1.0
Cobalt (Co), % 39 to 41
0 to 1.0
Iron (Fe), % 10 to 20.5
0 to 2.0
Manganese (Mn), % 1.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 6.0 to 8.0
26 to 30
Nickel (Ni), % 14 to 16
64.8 to 74
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 1.2
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.030