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201.0 Aluminum vs. R30605 Cobalt

201.0 aluminum belongs to the aluminum alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 201.0 aluminum and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
210
Elongation at Break, % 4.4 to 20
34
Fatigue Strength, MPa 120 to 150
260 to 590
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
81
Tensile Strength: Ultimate (UTS), MPa 370 to 470
1130 to 1900
Tensile Strength: Yield (Proof), MPa 220 to 400
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 570
1330
Specific Heat Capacity, J/kg-K 870
410
Thermal Conductivity, W/m-K 120
9.6
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30 to 33
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 97
1.8

Otherwise Unclassified Properties

Density, g/cm3 3.1
9.6
Embodied Carbon, kg CO2/kg material 8.7
9.8
Embodied Energy, MJ/kg 160
140

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 45
21
Strength to Weight: Axial, points 33 to 42
33 to 55
Strength to Weight: Bending, points 37 to 44
25 to 36
Thermal Diffusivity, mm2/s 45
2.5
Thermal Shock Resistance, points 19 to 25
31 to 52

Alloy Composition


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Aluminum (Al), % 92.1 to 95.1
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 4.0 to 5.2
0
Iron (Fe), % 0 to 0.15
0 to 3.0
Magnesium (Mg), % 0.15 to 0.55
0
Manganese (Mn), % 0.2 to 0.5
1.0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.4
Silver (Ag), % 0.4 to 1.0
0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.15 to 0.35
0
Tungsten (W), % 0
14 to 16
Residuals, % 0 to 0.1
0