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EN 2.4964 Cobalt vs. EN AC-51300 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN AC-51300 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 EN AC-51300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
67
Elongation at Break, % 40
3.7
Fatigue Strength, MPa 220
78
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
25
Tensile Strength: Ultimate (UTS), MPa 960
190
Tensile Strength: Yield (Proof), MPa 390
110

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Melting Completion (Liquidus), °C 1630
640
Melting Onset (Solidus), °C 1550
600
Specific Heat Capacity, J/kg-K 400
910
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
31
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
100

Otherwise Unclassified Properties

Density, g/cm3 9.6
2.7
Embodied Carbon, kg CO2/kg material 9.8
9.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 340
87
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
51
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 23
28
Thermal Diffusivity, mm2/s 3.9
45
Thermal Shock Resistance, points 25
8.6

Alloy Composition


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Aluminum (Al), % 0
91.4 to 95.5
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 to 0.1
Iron (Fe), % 0 to 3.0
0 to 0.55
Magnesium (Mg), % 0
4.5 to 6.5
Manganese (Mn), % 0 to 2.0
0 to 0.45
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.55
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 0.15