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EN 2.4964 Cobalt vs. 6106 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 6106 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, 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 6106 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
69
Elongation at Break, % 40
9.1
Fatigue Strength, MPa 220
88
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
26
Tensile Strength: Ultimate (UTS), MPa 960
290
Tensile Strength: Yield (Proof), MPa 390
220

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Melting Completion (Liquidus), °C 1630
660
Melting Onset (Solidus), °C 1550
610
Specific Heat Capacity, J/kg-K 400
900
Thermal Conductivity, W/m-K 15
190
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
49
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
160

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

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
24
Resilience: Unit (Modulus of Resilience), kJ/m3 340
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
50
Strength to Weight: Axial, points 28
29
Strength to Weight: Bending, points 23
35
Thermal Diffusivity, mm2/s 3.9
78
Thermal Shock Resistance, points 25
13

Alloy Composition

Aluminum (Al), % 0
97.2 to 99.3
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.2
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 3.0
0 to 0.35
Magnesium (Mg), % 0
0.4 to 0.8
Manganese (Mn), % 0 to 2.0
0.050 to 0.2
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0.3 to 0.6
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15