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EN 2.4964 Cobalt vs. 6012 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 6012 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 6012 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
69
Elongation at Break, % 40
9.1 to 11
Fatigue Strength, MPa 220
55 to 100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
26
Tensile Strength: Ultimate (UTS), MPa 960
220 to 320
Tensile Strength: Yield (Proof), MPa 390
110 to 260

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Melting Completion (Liquidus), °C 1630
640
Melting Onset (Solidus), °C 1550
570
Specific Heat Capacity, J/kg-K 400
890
Thermal Conductivity, W/m-K 15
160
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
45
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
140

Otherwise Unclassified Properties

Density, g/cm3 9.6
2.9
Embodied Carbon, kg CO2/kg material 9.8
8.2
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
21 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 340
94 to 480
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
48
Strength to Weight: Axial, points 28
22 to 32
Strength to Weight: Bending, points 23
29 to 37
Thermal Diffusivity, mm2/s 3.9
62
Thermal Shock Resistance, points 25
10 to 14

Alloy Composition


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Aluminum (Al), % 0
92.2 to 98
Bismuth (Bi), % 0
0 to 0.7
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.3
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 3.0
0 to 0.5
Lead (Pb), % 0
0.4 to 2.0
Magnesium (Mg), % 0
0.6 to 1.2
Manganese (Mn), % 0 to 2.0
0.4 to 1.0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0.6 to 1.4
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15