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N06007 Nickel vs. R31538 Cobalt

N06007 nickel belongs to the nickel alloys classification, while R31538 cobalt belongs to the cobalt alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is N06007 nickel and the bottom bar is R31538 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 38
13 to 23
Fatigue Strength, MPa 330
310 to 480
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
86
Tensile Strength: Ultimate (UTS), MPa 690
1020 to 1360
Tensile Strength: Yield (Proof), MPa 260
580 to 930

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1340
1360
Melting Onset (Solidus), °C 1260
1290
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 10
13
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 10
8.1
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 260
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 170
750 to 1920
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 23
34 to 45
Strength to Weight: Bending, points 21
27 to 32
Thermal Diffusivity, mm2/s 2.7
3.5
Thermal Shock Resistance, points 18
25 to 33

Alloy Composition

Carbon (C), % 0 to 0.050
0.15 to 0.35
Chromium (Cr), % 21 to 23.5
26 to 30
Cobalt (Co), % 0 to 2.5
58.7 to 68.9
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 18 to 21
0 to 0.75
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 5.5 to 7.5
5.0 to 7.0
Nickel (Ni), % 36.1 to 51.1
0 to 1.0
Niobium (Nb), % 1.8 to 2.5
0
Nitrogen (N), % 0.15 to 0.25
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0 to 1.0
0