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N06007 Nickel vs. R30012 Cobalt

N06007 nickel belongs to the nickel alloys classification, while R30012 cobalt belongs to the cobalt 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 (7, in this case) are not shown.

For each property being compared, the top bar is N06007 nickel and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 38
1.0
Fatigue Strength, MPa 330
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
86
Tensile Strength: Ultimate (UTS), MPa 690
830
Tensile Strength: Yield (Proof), MPa 260
650

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1340
1470
Melting Onset (Solidus), °C 1260
1280
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 10
15
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 10
8.3
Embodied Energy, MJ/kg 140
120
Embodied Water, L/kg 260
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 170
960
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 23
26
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 2.7
3.8
Thermal Shock Resistance, points 18
23

Alloy Composition

Carbon (C), % 0 to 0.050
1.4 to 2.0
Chromium (Cr), % 21 to 23.5
27 to 32
Cobalt (Co), % 0 to 2.5
47.5 to 64.1
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 18 to 21
0 to 3.0
Manganese (Mn), % 1.0 to 2.0
0
Molybdenum (Mo), % 5.5 to 7.5
0 to 1.0
Nickel (Ni), % 36.1 to 51.1
0 to 3.0
Niobium (Nb), % 1.8 to 2.5
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0 to 1.0
7.5 to 9.5