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N06985 Nickel vs. R30155 Cobalt

N06985 nickel belongs to the nickel alloys classification, while R30155 cobalt belongs to the iron alloys. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is N06985 nickel and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 45
34
Fatigue Strength, MPa 220
310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
81
Shear Strength, MPa 480
570
Tensile Strength: Ultimate (UTS), MPa 690
850
Tensile Strength: Yield (Proof), MPa 260
390

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1350
1470
Melting Onset (Solidus), °C 1260
1420
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 10
12
Thermal Expansion, µm/m-K 15
14

Otherwise Unclassified Properties

Base Metal Price, % relative 55
80
Density, g/cm3 8.4
8.5
Embodied Carbon, kg CO2/kg material 8.8
9.7
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 270
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
230
Resilience: Unit (Modulus of Resilience), kJ/m3 160
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 23
28
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 2.6
3.2
Thermal Shock Resistance, points 16
21

Alloy Composition

Carbon (C), % 0 to 0.015
0.080 to 0.16
Chromium (Cr), % 21 to 23.5
20 to 22.5
Cobalt (Co), % 0 to 5.0
18.5 to 21
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 18 to 21
24.3 to 36.2
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 6.0 to 8.0
2.5 to 3.5
Nickel (Ni), % 35.9 to 53.5
19 to 21
Niobium (Nb), % 0 to 0.5
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tungsten (W), % 0 to 1.5
2.0 to 3.0