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R30605 Cobalt vs. N07776 Nickel

R30605 cobalt belongs to the cobalt alloys classification, while N07776 nickel belongs to the nickel alloys. They have a modest 31% 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 N07776 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
39
Fatigue Strength, MPa 260 to 590
220
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
700
Tensile Strength: Yield (Proof), MPa 470 to 1600
270

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1410
1550
Melting Onset (Solidus), °C 1330
1500
Specific Heat Capacity, J/kg-K 410
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.6
Embodied Carbon, kg CO2/kg material 9.8
15
Embodied Energy, MJ/kg 140
210
Embodied Water, L/kg 450
270

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 33 to 55
22
Strength to Weight: Bending, points 25 to 36
20
Thermal Shock Resistance, points 31 to 52
20

Alloy Composition

Aluminum (Al), % 0
0 to 2.0
Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 19 to 21
12 to 22
Cobalt (Co), % 46.4 to 57
0
Iron (Fe), % 0 to 3.0
0 to 24.5
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
9.0 to 15
Nickel (Ni), % 9.0 to 11
50 to 60
Niobium (Nb), % 0
4.0 to 6.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Tungsten (W), % 14 to 16
0.5 to 2.5