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EN 2.4964 Cobalt vs. A206.0 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while A206.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 A206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
70
Elongation at Break, % 40
4.2 to 10
Fatigue Strength, MPa 220
90 to 180
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
26
Tensile Strength: Ultimate (UTS), MPa 960
390 to 440
Tensile Strength: Yield (Proof), MPa 390
250 to 380

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Melting Completion (Liquidus), °C 1630
670
Melting Onset (Solidus), °C 1550
550
Specific Heat Capacity, J/kg-K 400
880
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
30
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
90

Otherwise Unclassified Properties

Density, g/cm3 9.6
3.0
Embodied Carbon, kg CO2/kg material 9.8
8.0
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
16 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 340
440 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
46
Strength to Weight: Axial, points 28
36 to 41
Strength to Weight: Bending, points 23
39 to 43
Thermal Diffusivity, mm2/s 3.9
48
Thermal Shock Resistance, points 25
17 to 19

Alloy Composition


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Aluminum (Al), % 0
93.9 to 95.7
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
4.2 to 5.0
Iron (Fe), % 0 to 3.0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 2.0
0 to 0.2
Nickel (Ni), % 9.0 to 11
0 to 0.050
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.050
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15