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N06045 Nickel vs. R31538 Cobalt

N06045 nickel belongs to the nickel alloys classification, while R31538 cobalt belongs to the cobalt alloys. They have a modest 29% 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 (10, in this case) are not shown.

For each property being compared, the top bar is N06045 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, % 37
13 to 23
Fatigue Strength, MPa 210
310 to 480
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
86
Tensile Strength: Ultimate (UTS), MPa 690
1020 to 1360
Tensile Strength: Yield (Proof), MPa 270
580 to 930

Thermal Properties

Latent Heat of Fusion, J/g 350
320
Melting Completion (Liquidus), °C 1350
1360
Melting Onset (Solidus), °C 1300
1290
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 6.9
8.1
Embodied Energy, MJ/kg 98
110
Embodied Water, L/kg 250
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 180
750 to 1920
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
34 to 45
Strength to Weight: Bending, points 22
27 to 32
Thermal Shock Resistance, points 18
25 to 33

Alloy Composition

Carbon (C), % 0.050 to 0.12
0.15 to 0.35
Cerium (Ce), % 0.030 to 0.090
0
Chromium (Cr), % 26 to 29
26 to 30
Cobalt (Co), % 0
58.7 to 68.9
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 21 to 25
0 to 0.75
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 45 to 50.4
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 2.5 to 3.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0