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N06045 Nickel vs. R30021 Cobalt

N06045 nickel belongs to the nickel alloys classification, while R30021 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 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 R30021 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 37
9.0
Fatigue Strength, MPa 210
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
86
Tensile Strength: Ultimate (UTS), MPa 690
700
Tensile Strength: Yield (Proof), MPa 270
500

Thermal Properties

Latent Heat of Fusion, J/g 350
330
Melting Completion (Liquidus), °C 1350
1350
Melting Onset (Solidus), °C 1300
1190
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 6.9
8.0
Embodied Energy, MJ/kg 98
110
Embodied Water, L/kg 250
520

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
57
Resilience: Unit (Modulus of Resilience), kJ/m3 180
570
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 22
21
Thermal Shock Resistance, points 18
21

Alloy Composition

Carbon (C), % 0.050 to 0.12
0.2 to 0.35
Cerium (Ce), % 0.030 to 0.090
0
Chromium (Cr), % 26 to 29
26 to 29
Cobalt (Co), % 0
61.7 to 67.3
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 21 to 25
0 to 3.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
4.5 to 6.0
Nickel (Ni), % 45 to 50.4
2.0 to 3.0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 2.5 to 3.0
0 to 1.5
Sulfur (S), % 0 to 0.010
0