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A380.0 Aluminum vs. EN 2.4964 Cobalt

A380.0 aluminum belongs to the aluminum alloys classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 A380.0 aluminum and the bottom bar is EN 2.4964 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
220
Elongation at Break, % 3.3
40
Fatigue Strength, MPa 140
220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
86
Tensile Strength: Ultimate (UTS), MPa 290
960
Tensile Strength: Yield (Proof), MPa 160
390

Thermal Properties

Latent Heat of Fusion, J/g 510
290
Melting Completion (Liquidus), °C 590
1630
Melting Onset (Solidus), °C 550
1550
Specific Heat Capacity, J/kg-K 870
400
Thermal Conductivity, W/m-K 96
15
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 78
1.8

Otherwise Unclassified Properties

Density, g/cm3 2.9
9.6
Embodied Carbon, kg CO2/kg material 7.5
9.8
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 1040
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
310
Resilience: Unit (Modulus of Resilience), kJ/m3 180
340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
21
Strength to Weight: Axial, points 28
28
Strength to Weight: Bending, points 34
23
Thermal Diffusivity, mm2/s 38
3.9
Thermal Shock Resistance, points 13
25

Alloy Composition


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Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 58
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.3
0 to 3.0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 0 to 0.5
9.0 to 11
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 7.5 to 9.5
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.35
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0