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N08120 Nickel vs. R30605 Cobalt

N08120 nickel belongs to the nickel alloys classification, while R30605 cobalt belongs to the cobalt alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is N08120 nickel and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
34
Fatigue Strength, MPa 230
260 to 590
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 700
1130 to 1900
Tensile Strength: Yield (Proof), MPa 310
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1370
1330
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 11
9.6
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Density, g/cm3 8.2
9.6
Embodied Carbon, kg CO2/kg material 7.2
9.8
Embodied Energy, MJ/kg 100
140
Embodied Water, L/kg 240
450

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 24
33 to 55
Strength to Weight: Bending, points 21
25 to 36
Thermal Diffusivity, mm2/s 3.0
2.5
Thermal Shock Resistance, points 17
31 to 52

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0.020 to 0.1
0.050 to 0.15
Chromium (Cr), % 23 to 27
19 to 21
Cobalt (Co), % 0 to 3.0
46.4 to 57
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 21 to 41.4
0 to 3.0
Manganese (Mn), % 0 to 1.5
1.0 to 2.0
Molybdenum (Mo), % 0 to 2.5
0
Nickel (Ni), % 35 to 39
9.0 to 11
Niobium (Nb), % 0.4 to 0.9
0
Nitrogen (N), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0 to 2.5
14 to 16