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R30006 Cobalt vs. EN 2.4665 Nickel

R30006 cobalt belongs to the cobalt alloys classification, while EN 2.4665 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 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is EN 2.4665 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 1.0
34
Fatigue Strength, MPa 260
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 85
81
Tensile Strength: Ultimate (UTS), MPa 900
790
Tensile Strength: Yield (Proof), MPa 540
300

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
1.6

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.4
Embodied Carbon, kg CO2/kg material 7.8
9.2
Embodied Energy, MJ/kg 110
130
Embodied Water, L/kg 500
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
210
Resilience: Unit (Modulus of Resilience), kJ/m3 670
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 29
26
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 3.9
3.2
Thermal Shock Resistance, points 26
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.9 to 1.4
0.050 to 0.15
Chromium (Cr), % 27 to 32
20.5 to 23
Cobalt (Co), % 48.6 to 68.1
0.5 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 3.0
17 to 20
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0 to 1.0
8.0 to 10
Nickel (Ni), % 0 to 3.0
40.3 to 53.8
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 4.0 to 6.0
0.2 to 1.0