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Nickel 600 vs. R30816 Cobalt

Nickel 600 belongs to the nickel alloys classification, while R30816 cobalt belongs to the cobalt alloys. They have a modest 39% 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 (9, in this case) are not shown.

For each property being compared, the top bar is nickel 600 and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 3.4 to 35
23
Fatigue Strength, MPa 220 to 300
250
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 650 to 990
1020
Tensile Strength: Yield (Proof), MPa 270 to 760
460

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Melting Completion (Liquidus), °C 1410
1540
Melting Onset (Solidus), °C 1350
1460
Specific Heat Capacity, J/kg-K 460
420
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.1
Embodied Carbon, kg CO2/kg material 9.0
20
Embodied Energy, MJ/kg 130
320
Embodied Water, L/kg 250
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 180
190
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1490
510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 21 to 32
31
Strength to Weight: Bending, points 20 to 26
25
Thermal Diffusivity, mm2/s 3.6
3.3
Thermal Shock Resistance, points 19 to 29
28

Alloy Composition

Carbon (C), % 0 to 0.15
0.32 to 0.42
Chromium (Cr), % 14 to 17
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 6.0 to 10
0 to 5.0
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 72 to 80
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tungsten (W), % 0
3.5 to 4.5