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Nickel 80A vs. R30605 Cobalt

Nickel 80A belongs to the nickel alloys classification, while R30605 cobalt belongs to the cobalt alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 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 nickel 80A and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
34
Fatigue Strength, MPa 430
260 to 590
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
81
Tensile Strength: Ultimate (UTS), MPa 1040
1130 to 1900
Tensile Strength: Yield (Proof), MPa 710
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1360
1410
Melting Onset (Solidus), °C 1310
1330
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 11
9.6
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.3
9.6
Embodied Carbon, kg CO2/kg material 9.8
9.8
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 280
450

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 35
33 to 55
Strength to Weight: Bending, points 27
25 to 36
Thermal Diffusivity, mm2/s 2.9
2.5
Thermal Shock Resistance, points 31
31 to 52

Alloy Composition

Aluminum (Al), % 0.5 to 1.8
0
Carbon (C), % 0 to 0.1
0.050 to 0.15
Chromium (Cr), % 18 to 21
19 to 21
Cobalt (Co), % 0
46.4 to 57
Iron (Fe), % 0 to 3.0
0 to 3.0
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Nickel (Ni), % 69.4 to 79.7
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 1.8 to 2.7
0
Tungsten (W), % 0
14 to 16