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Nickel 30 vs. R30605 Cobalt

Nickel 30 belongs to the nickel alloys classification, while R30605 cobalt belongs to the cobalt alloys. They have a modest 37% 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 30 and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 34
34
Fatigue Strength, MPa 200
260 to 590
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 82
81
Tensile Strength: Ultimate (UTS), MPa 660
1130 to 1900
Tensile Strength: Yield (Proof), MPa 270
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1430
1330
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 10
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 8.5
9.6
Embodied Carbon, kg CO2/kg material 9.4
9.8
Embodied Energy, MJ/kg 130
140
Embodied Water, L/kg 290
450

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 22
33 to 55
Strength to Weight: Bending, points 20
25 to 36
Thermal Diffusivity, mm2/s 2.7
2.5
Thermal Shock Resistance, points 18
31 to 52

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 28 to 31.5
19 to 21
Cobalt (Co), % 0 to 5.0
46.4 to 57
Copper (Cu), % 1.0 to 2.4
0
Iron (Fe), % 13 to 17
0 to 3.0
Manganese (Mn), % 0 to 0.030
1.0 to 2.0
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 30.2 to 52.2
9.0 to 11
Niobium (Nb), % 0.3 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 4.0
14 to 16