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EN 2.4964 Cobalt vs. 6101 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 6101 aluminum belongs to the aluminum alloys. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is 6101 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
68
Elongation at Break, % 40
10 to 25
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
26

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Melting Completion (Liquidus), °C 1630
650
Melting Onset (Solidus), °C 1550
620
Specific Heat Capacity, J/kg-K 400
900
Thermal Conductivity, W/m-K 15
220 to 230
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
57 to 60
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
190 to 200

Otherwise Unclassified Properties

Density, g/cm3 9.6
2.7
Embodied Carbon, kg CO2/kg material 9.8
8.3
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
1190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
50
Thermal Diffusivity, mm2/s 3.9
89 to 93

Alloy Composition

Aluminum (Al), % 0
97.6 to 99.4
Boron (B), % 0
0 to 0.060
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.030
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 3.0
0 to 0.5
Magnesium (Mg), % 0
0.35 to 0.8
Manganese (Mn), % 0 to 2.0
0 to 0.030
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0.3 to 0.7
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.1