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R30006 Cobalt vs. Nickel 890

R30006 cobalt belongs to the cobalt alloys classification, while nickel 890 belongs to the nickel 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 (10, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is nickel 890.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 1.0
39
Fatigue Strength, MPa 260
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 85
78
Tensile Strength: Ultimate (UTS), MPa 900
590
Tensile Strength: Yield (Proof), MPa 540
230

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1290
1340
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.1
Embodied Carbon, kg CO2/kg material 7.8
8.2
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 500
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
180
Resilience: Unit (Modulus of Resilience), kJ/m3 670
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 29
20
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 26
15

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.6
Carbon (C), % 0.9 to 1.4
0.060 to 0.14
Chromium (Cr), % 27 to 32
23.5 to 28.5
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 3.0
17.3 to 33.9
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0 to 1.0
1.0 to 2.0
Nickel (Ni), % 0 to 3.0
40 to 45
Niobium (Nb), % 0
0.2 to 1.0
Silicon (Si), % 0 to 2.0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.015
Tantalum (Ta), % 0
0.1 to 0.6
Titanium (Ti), % 0
0.15 to 0.6
Tungsten (W), % 4.0 to 6.0
0