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R30816 Cobalt vs. Nickel 333

R30816 cobalt belongs to the cobalt alloys classification, while nickel 333 belongs to the nickel alloys. They have 54% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R30816 cobalt and the bottom bar is nickel 333.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 23
34
Fatigue Strength, MPa 250
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 81
81
Tensile Strength: Ultimate (UTS), MPa 1020
630
Tensile Strength: Yield (Proof), MPa 460
270

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1540
1460
Melting Onset (Solidus), °C 1460
1410
Specific Heat Capacity, J/kg-K 420
450
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Density, g/cm3 9.1
8.5
Embodied Carbon, kg CO2/kg material 20
8.5
Embodied Energy, MJ/kg 320
120
Embodied Water, L/kg 440
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
170
Resilience: Unit (Modulus of Resilience), kJ/m3 510
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 31
21
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 3.3
2.9
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0.32 to 0.42
0 to 0.1
Chromium (Cr), % 19 to 21
24 to 27
Cobalt (Co), % 40 to 49.8
2.5 to 4.0
Iron (Fe), % 0 to 5.0
9.3 to 24.5
Manganese (Mn), % 1.0 to 2.0
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.5
2.5 to 4.0
Nickel (Ni), % 19 to 21
44 to 48
Niobium (Nb), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 3.5 to 4.5
0
Tungsten (W), % 3.5 to 4.5
2.5 to 4.0