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R30006 Cobalt vs. N07776 Nickel

R30006 cobalt belongs to the cobalt alloys classification, while N07776 nickel belongs to the nickel alloys. They have a modest 22% 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 (11, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is N07776 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 1.0
39
Fatigue Strength, MPa 260
220
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 85
79
Tensile Strength: Ultimate (UTS), MPa 900
700
Tensile Strength: Yield (Proof), MPa 540
270

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1400
1550
Melting Onset (Solidus), °C 1290
1500
Specific Heat Capacity, J/kg-K 450
430
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.6
Embodied Carbon, kg CO2/kg material 7.8
15
Embodied Energy, MJ/kg 110
210
Embodied Water, L/kg 500
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
220
Resilience: Unit (Modulus of Resilience), kJ/m3 670
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 24
20
Thermal Shock Resistance, points 26
20

Alloy Composition

Aluminum (Al), % 0
0 to 2.0
Carbon (C), % 0.9 to 1.4
0 to 0.030
Chromium (Cr), % 27 to 32
12 to 22
Cobalt (Co), % 48.6 to 68.1
0
Iron (Fe), % 0 to 3.0
0 to 24.5
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0 to 1.0
9.0 to 15
Nickel (Ni), % 0 to 3.0
50 to 60
Niobium (Nb), % 0
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Tungsten (W), % 4.0 to 6.0
0.5 to 2.5