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R31537 Cobalt vs. N12160 Nickel

R31537 cobalt belongs to the cobalt alloys classification, while N12160 nickel belongs to the nickel alloys. They have 60% of their average alloy composition in common. 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 R31537 cobalt and the bottom bar is N12160 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 14 to 23
45
Fatigue Strength, MPa 310 to 480
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 87
80
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
710
Tensile Strength: Yield (Proof), MPa 590 to 940
270

Thermal Properties

Latent Heat of Fusion, J/g 320
360
Melting Completion (Liquidus), °C 1360
1330
Melting Onset (Solidus), °C 1290
1280
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
8.5
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 530
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
260
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33 to 44
24
Strength to Weight: Bending, points 26 to 32
22
Thermal Diffusivity, mm2/s 3.4
2.8
Thermal Shock Resistance, points 24 to 32
19

Alloy Composition

Carbon (C), % 0 to 0.14
0 to 0.15
Chromium (Cr), % 26 to 30
26 to 30
Cobalt (Co), % 58.9 to 69
27 to 33
Iron (Fe), % 0 to 0.75
0 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 5.0 to 7.0
0 to 1.0
Nickel (Ni), % 0 to 1.0
25 to 44.4
Niobium (Nb), % 0
0 to 1.0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 1.0
2.4 to 3.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.8
Tungsten (W), % 0
0 to 1.0