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N08221 Nickel vs. R30008 Cobalt

N08221 nickel belongs to the nickel alloys classification, while R30008 cobalt belongs to the cobalt alloys. They have 57% of their average alloy composition in common. There are 23 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 N08221 nickel and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
1.1 to 73
Fatigue Strength, MPa 190
320 to 530
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
83
Tensile Strength: Ultimate (UTS), MPa 610
950 to 1700
Tensile Strength: Yield (Proof), MPa 270
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 460
450
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 44
95
Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 7.9
8.1
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 240
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 170
590 to 2720
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
31 to 56
Strength to Weight: Bending, points 19
25 to 37
Thermal Shock Resistance, points 16
25 to 44

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Boron (B), % 0
0 to 0.0010
Carbon (C), % 0 to 0.025
0 to 0.15
Chromium (Cr), % 20 to 22
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 22 to 33.9
7.6 to 20
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 5.0 to 6.5
6.5 to 7.5
Nickel (Ni), % 39 to 46
15 to 18
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.050
0 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0.6 to 1.0
0