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EN 2.4964 Cobalt vs. 3003 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 3003 aluminum belongs to the aluminum 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 EN 2.4964 cobalt and the bottom bar is 3003 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
70
Elongation at Break, % 40
1.1 to 28
Fatigue Strength, MPa 220
39 to 90
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
26
Tensile Strength: Ultimate (UTS), MPa 960
110 to 240
Tensile Strength: Yield (Proof), MPa 390
40 to 210

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Melting Completion (Liquidus), °C 1630
650
Melting Onset (Solidus), °C 1550
640
Specific Heat Capacity, J/kg-K 400
900
Thermal Conductivity, W/m-K 15
180
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
44
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
140

Otherwise Unclassified Properties

Density, g/cm3 9.6
2.8
Embodied Carbon, kg CO2/kg material 9.8
8.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
0.95 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 340
11 to 300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
50
Strength to Weight: Axial, points 28
11 to 24
Strength to Weight: Bending, points 23
18 to 30
Thermal Diffusivity, mm2/s 3.9
71
Thermal Shock Resistance, points 25
4.7 to 10

Alloy Composition


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Aluminum (Al), % 0
96.8 to 99
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0.050 to 0.2
Iron (Fe), % 0 to 3.0
0 to 0.7
Manganese (Mn), % 0 to 2.0
1.0 to 1.5
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15