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EN 2.4964 Cobalt vs. A201.0 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while A201.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (2, 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 A201.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
71
Elongation at Break, % 40
4.7
Fatigue Strength, MPa 220
97
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
27
Tensile Strength: Ultimate (UTS), MPa 960
480
Tensile Strength: Yield (Proof), MPa 390
420

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Melting Completion (Liquidus), °C 1630
650
Melting Onset (Solidus), °C 1550
570
Specific Heat Capacity, J/kg-K 400
880
Thermal Conductivity, W/m-K 15
120
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
8.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
22
Resilience: Unit (Modulus of Resilience), kJ/m3 340
1250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
46
Strength to Weight: Axial, points 28
44
Strength to Weight: Bending, points 23
45
Thermal Diffusivity, mm2/s 3.9
46
Thermal Shock Resistance, points 25
21

Alloy Composition


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Aluminum (Al), % 0
93.7 to 95.5
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 0 to 3.0
0 to 0.1
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.050
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0.15 to 0.35
Tungsten (W), % 14 to 16
0
Residuals, % 0
0 to 0.1