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EN 2.4964 Cobalt vs. 390.0 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 390.0 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 390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
75
Elongation at Break, % 40
1.0
Fatigue Strength, MPa 220
76 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
28
Tensile Strength: Ultimate (UTS), MPa 960
280 to 300
Tensile Strength: Yield (Proof), MPa 390
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 290
640
Melting Completion (Liquidus), °C 1630
650
Melting Onset (Solidus), °C 1550
560
Specific Heat Capacity, J/kg-K 400
880
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
24 to 25
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
79 to 83

Otherwise Unclassified Properties

Density, g/cm3 9.6
2.7
Embodied Carbon, kg CO2/kg material 9.8
7.3
Embodied Energy, MJ/kg 140
130
Embodied Water, L/kg 450
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
2.7 to 2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 340
380 to 470
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 21
52
Strength to Weight: Axial, points 28
28 to 30
Strength to Weight: Bending, points 23
35 to 36
Thermal Diffusivity, mm2/s 3.9
56
Thermal Shock Resistance, points 25
14 to 15

Alloy Composition


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Aluminum (Al), % 0
74.5 to 79.6
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 1.3
Magnesium (Mg), % 0
0.45 to 0.65
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
16 to 18
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 0.1
Residuals, % 0
0 to 0.2