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R30605 Cobalt vs. N08221 Nickel

R30605 cobalt belongs to the cobalt alloys classification, while N08221 nickel belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 260 to 590
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
610
Tensile Strength: Yield (Proof), MPa 470 to 1600
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 410
460
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.3
Embodied Carbon, kg CO2/kg material 9.8
7.9
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 450
240

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 33 to 55
21
Strength to Weight: Bending, points 25 to 36
19
Thermal Shock Resistance, points 31 to 52
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0.050 to 0.15
0 to 0.025
Chromium (Cr), % 19 to 21
20 to 22
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 0 to 3.0
22 to 33.9
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 6.5
Nickel (Ni), % 9.0 to 11
39 to 46
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0 to 0.050
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.0
Tungsten (W), % 14 to 16
0