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N07773 Nickel vs. R30816 Cobalt

N07773 nickel belongs to the nickel alloys classification, while R30816 cobalt belongs to the cobalt alloys. They have 54% of their average alloy composition in common. There are 24 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 N07773 nickel and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
23
Fatigue Strength, MPa 220
250
Poisson's Ratio 0.29
0.3
Reduction in Area, % 56
22
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 710
1020
Tensile Strength: Yield (Proof), MPa 270
460

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1510
1540
Melting Onset (Solidus), °C 1460
1460
Specific Heat Capacity, J/kg-K 450
420
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.1
Embodied Carbon, kg CO2/kg material 13
20
Embodied Energy, MJ/kg 180
320
Embodied Water, L/kg 260
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
190
Resilience: Unit (Modulus of Resilience), kJ/m3 180
510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 23
31
Strength to Weight: Bending, points 21
25
Thermal Shock Resistance, points 20
28

Alloy Composition

Aluminum (Al), % 0 to 2.0
0
Carbon (C), % 0 to 0.030
0.32 to 0.42
Chromium (Cr), % 18 to 27
19 to 21
Cobalt (Co), % 0
40 to 49.8
Iron (Fe), % 0 to 32
0 to 5.0
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 2.5 to 5.5
3.5 to 4.5
Nickel (Ni), % 45 to 60
19 to 21
Niobium (Nb), % 2.5 to 6.0
3.5 to 4.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Titanium (Ti), % 0 to 2.0
0
Tungsten (W), % 0 to 6.0
3.5 to 4.5