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R31538 Cobalt vs. N10003 Nickel

R31538 cobalt belongs to the cobalt alloys classification, while N10003 nickel belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is N10003 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 13 to 23
42
Fatigue Strength, MPa 310 to 480
260
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 86
80
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
780
Tensile Strength: Yield (Proof), MPa 580 to 930
320

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1360
1520
Melting Onset (Solidus), °C 1290
1460
Specific Heat Capacity, J/kg-K 450
420
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.4

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 8.1
13
Embodied Energy, MJ/kg 110
180
Embodied Water, L/kg 530
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
260
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
240
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 34 to 45
24
Strength to Weight: Bending, points 27 to 32
21
Thermal Diffusivity, mm2/s 3.5
3.1
Thermal Shock Resistance, points 25 to 33
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.15 to 0.35
0.040 to 0.080
Chromium (Cr), % 26 to 30
6.0 to 8.0
Cobalt (Co), % 58.7 to 68.9
0 to 0.2
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 0 to 0.75
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 5.0 to 7.0
15 to 18
Nickel (Ni), % 0 to 1.0
64.8 to 79
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0 to 0.5