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N07716 Nickel vs. R30816 Cobalt

N07716 nickel belongs to the nickel alloys classification, while R30816 cobalt belongs to the cobalt alloys. They have 50% of their average alloy composition in common. There are 26 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 N07716 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, % 34
23
Fatigue Strength, MPa 690
250
Poisson's Ratio 0.29
0.3
Reduction in Area, % 46
22
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 860
1020
Tensile Strength: Yield (Proof), MPa 350
460

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1480
1540
Melting Onset (Solidus), °C 1430
1460
Specific Heat Capacity, J/kg-K 440
420
Thermal Conductivity, W/m-K 11
13
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 190
320
Embodied Water, L/kg 280
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
190
Resilience: Unit (Modulus of Resilience), kJ/m3 300
510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 28
31
Strength to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 2.8
3.3
Thermal Shock Resistance, points 24
28

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0.32 to 0.42
Chromium (Cr), % 19 to 22
19 to 21
Cobalt (Co), % 0
40 to 49.8
Iron (Fe), % 0 to 11.3
0 to 5.0
Manganese (Mn), % 0 to 0.2
1.0 to 2.0
Molybdenum (Mo), % 7.0 to 9.5
3.5 to 4.5
Nickel (Ni), % 59 to 63
19 to 21
Niobium (Nb), % 2.8 to 4.0
3.5 to 4.5
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Titanium (Ti), % 1.0 to 1.6
0
Tungsten (W), % 0
3.5 to 4.5