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R31538 Cobalt vs. N10629 Nickel

R31538 cobalt belongs to the cobalt alloys classification, while N10629 nickel belongs to the nickel alloys. 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 R31538 cobalt and the bottom bar is N10629 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 13 to 23
45
Fatigue Strength, MPa 310 to 480
340
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 86
83
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
860
Tensile Strength: Yield (Proof), MPa 580 to 930
400

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1360
1610
Melting Onset (Solidus), °C 1290
1560
Specific Heat Capacity, J/kg-K 450
390
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Density, g/cm3 8.4
9.2
Embodied Carbon, kg CO2/kg material 8.1
15
Embodied Energy, MJ/kg 110
190
Embodied Water, L/kg 530
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
320
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
360
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 34 to 45
26
Strength to Weight: Bending, points 27 to 32
22
Thermal Shock Resistance, points 25 to 33
27

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Carbon (C), % 0.15 to 0.35
0 to 0.010
Chromium (Cr), % 26 to 30
0.5 to 1.5
Cobalt (Co), % 58.7 to 68.9
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 0.75
1.0 to 6.0
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 5.0 to 7.0
26 to 30
Nickel (Ni), % 0 to 1.0
65 to 72.4
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.050
Sulfur (S), % 0
0 to 0.010