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Nickel 59 vs. R30605 Cobalt

Nickel 59 belongs to the nickel alloys classification, while R30605 cobalt belongs to the cobalt alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 nickel 59 and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 50
34
Fatigue Strength, MPa 320
260 to 590
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
81
Tensile Strength: Ultimate (UTS), MPa 780
1130 to 1900
Tensile Strength: Yield (Proof), MPa 350
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Melting Completion (Liquidus), °C 1500
1410
Melting Onset (Solidus), °C 1450
1330
Specific Heat Capacity, J/kg-K 430
410
Thermal Conductivity, W/m-K 10
9.6
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Density, g/cm3 8.7
9.6
Embodied Carbon, kg CO2/kg material 12
9.8
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 310
450

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 25
33 to 55
Strength to Weight: Bending, points 22
25 to 36
Thermal Diffusivity, mm2/s 2.7
2.5
Thermal Shock Resistance, points 15
31 to 52

Alloy Composition

Aluminum (Al), % 0.1 to 0.4
0
Carbon (C), % 0 to 0.010
0.050 to 0.15
Chromium (Cr), % 22 to 24
19 to 21
Cobalt (Co), % 0 to 0.3
46.4 to 57
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 1.5
0 to 3.0
Manganese (Mn), % 0 to 0.5
1.0 to 2.0
Molybdenum (Mo), % 15 to 16.5
0
Nickel (Ni), % 56.2 to 62.9
9.0 to 11
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
14 to 16