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EN 2.4964 Cobalt vs. EN AC-46100 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN AC-46100 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-46100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
73
Elongation at Break, % 40
1.0
Fatigue Strength, MPa 220
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
28
Tensile Strength: Ultimate (UTS), MPa 960
270
Tensile Strength: Yield (Proof), MPa 390
160

Thermal Properties

Latent Heat of Fusion, J/g 290
550
Melting Completion (Liquidus), °C 1630
600
Melting Onset (Solidus), °C 1550
540
Specific Heat Capacity, J/kg-K 400
890
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
28
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
90

Otherwise Unclassified Properties

Density, g/cm3 9.6
2.7
Embodied Carbon, kg CO2/kg material 9.8
7.6
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 450
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 340
170
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 21
51
Strength to Weight: Axial, points 28
27
Strength to Weight: Bending, points 23
34
Thermal Diffusivity, mm2/s 3.9
44
Thermal Shock Resistance, points 25
12

Alloy Composition


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Aluminum (Al), % 0
80.4 to 88.5
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.15
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 0 to 3.0
0 to 1.1
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0
0 to 0.3
Manganese (Mn), % 0 to 2.0
0 to 0.55
Nickel (Ni), % 9.0 to 11
0 to 0.45
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
10 to 12
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 1.7
Residuals, % 0
0 to 0.25