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R30006 Cobalt vs. N06007 Nickel

R30006 cobalt belongs to the cobalt alloys classification, while N06007 nickel belongs to the nickel alloys. They have a modest 28% 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 (8, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is N06007 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 1.0
38
Fatigue Strength, MPa 260
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
79
Tensile Strength: Ultimate (UTS), MPa 900
690
Tensile Strength: Yield (Proof), MPa 540
260

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1400
1340
Melting Onset (Solidus), °C 1290
1260
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 15
10
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.4
Embodied Carbon, kg CO2/kg material 7.8
10
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 500
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
200
Resilience: Unit (Modulus of Resilience), kJ/m3 670
170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 29
23
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 3.9
2.7
Thermal Shock Resistance, points 26
18

Alloy Composition

Carbon (C), % 0.9 to 1.4
0 to 0.050
Chromium (Cr), % 27 to 32
21 to 23.5
Cobalt (Co), % 48.6 to 68.1
0 to 2.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 0 to 3.0
18 to 21
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0 to 1.0
5.5 to 7.5
Nickel (Ni), % 0 to 3.0
36.1 to 51.1
Niobium (Nb), % 0
1.8 to 2.5
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 4.0 to 6.0
0 to 1.0