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Grade CW6MC Nickel vs. R30035 Cobalt

Grade CW6MC nickel belongs to the nickel alloys classification, while R30035 cobalt belongs to the cobalt alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade CW6MC nickel and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220 to 230
Elongation at Break, % 28
9.0 to 46
Fatigue Strength, MPa 210
170 to 740
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
84 to 89
Tensile Strength: Ultimate (UTS), MPa 540
900 to 1900
Tensile Strength: Yield (Proof), MPa 310
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1320
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 11
11
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 80
100
Density, g/cm3 8.6
8.7
Embodied Carbon, kg CO2/kg material 14
10
Embodied Energy, MJ/kg 200
140
Embodied Water, L/kg 290
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 240
210 to 5920
Stiffness to Weight: Axial, points 13
14 to 15
Stiffness to Weight: Bending, points 23
23 to 24
Strength to Weight: Axial, points 18
29 to 61
Strength to Weight: Bending, points 17
24 to 39
Thermal Diffusivity, mm2/s 2.8
3.0
Thermal Shock Resistance, points 15
23 to 46

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0 to 0.060
0 to 0.025
Chromium (Cr), % 20 to 23
19 to 21
Cobalt (Co), % 0
29.1 to 39
Iron (Fe), % 0 to 5.0
0 to 1.0
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 8.0 to 10
9.0 to 10.5
Nickel (Ni), % 55.4 to 68.9
33 to 37
Niobium (Nb), % 3.2 to 4.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.15
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 1.0