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EN AC-48000 Aluminum vs. EN 2.4964 Cobalt

EN AC-48000 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 (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 AC-48000 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, % 1.0
40
Fatigue Strength, MPa 85 to 86
220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
86
Tensile Strength: Ultimate (UTS), MPa 220 to 310
960
Tensile Strength: Yield (Proof), MPa 210 to 270
390

Thermal Properties

Latent Heat of Fusion, J/g 570
290
Melting Completion (Liquidus), °C 600
1630
Melting Onset (Solidus), °C 560
1550
Specific Heat Capacity, J/kg-K 890
400
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.8

Otherwise Unclassified Properties

Density, g/cm3 2.7
9.6
Embodied Carbon, kg CO2/kg material 7.9
9.8
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 1030
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
310
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
340
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
21
Strength to Weight: Axial, points 23 to 33
28
Strength to Weight: Bending, points 31 to 39
23
Thermal Diffusivity, mm2/s 54
3.9
Thermal Shock Resistance, points 10 to 15
25

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 58
Copper (Cu), % 0.8 to 1.5
0
Iron (Fe), % 0 to 0.7
0 to 3.0
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Nickel (Ni), % 0.7 to 1.3
9.0 to 11
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 10.5 to 13.5
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0