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EN 2.4964 Cobalt vs. 6105 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 6105 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 6105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
68
Elongation at Break, % 40
9.0 to 16
Fatigue Strength, MPa 220
95 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
26
Tensile Strength: Ultimate (UTS), MPa 960
190 to 280
Tensile Strength: Yield (Proof), MPa 390
120 to 270

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Melting Completion (Liquidus), °C 1630
650
Melting Onset (Solidus), °C 1550
600
Specific Heat Capacity, J/kg-K 400
900
Thermal Conductivity, W/m-K 15
180 to 190
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
46 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
150 to 170

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
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
25 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 340
100 to 550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
51
Strength to Weight: Axial, points 28
20 to 29
Strength to Weight: Bending, points 23
28 to 35
Thermal Diffusivity, mm2/s 3.9
72 to 79
Thermal Shock Resistance, points 25
8.6 to 12

Alloy Composition

Aluminum (Al), % 0
97.2 to 99
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.1
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 3.0
0 to 0.35
Magnesium (Mg), % 0
0.45 to 0.8
Manganese (Mn), % 0 to 2.0
0 to 0.1
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0.6 to 1.0
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 0.1
Residuals, % 0
0 to 0.15