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5052 Aluminum vs. R30016 Cobalt

5052 aluminum belongs to the aluminum alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 27 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 5052 aluminum and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
220
Elongation at Break, % 1.1 to 22
8.4
Fatigue Strength, MPa 66 to 140
290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
85
Tensile Strength: Ultimate (UTS), MPa 190 to 320
1010
Tensile Strength: Yield (Proof), MPa 75 to 280
580

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Melting Completion (Liquidus), °C 650
1360
Melting Onset (Solidus), °C 610
1270
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 24
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.0

Otherwise Unclassified Properties

Density, g/cm3 2.7
8.5
Embodied Carbon, kg CO2/kg material 8.6
7.7
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1190
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7 to 69
72
Resilience: Unit (Modulus of Resilience), kJ/m3 41 to 590
770
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 19 to 33
33
Strength to Weight: Bending, points 27 to 38
26
Thermal Diffusivity, mm2/s 57
3.9
Thermal Shock Resistance, points 8.3 to 14
24

Alloy Composition

Aluminum (Al), % 95.8 to 97.7
0
Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0.15 to 0.35
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
0 to 3.0
Magnesium (Mg), % 2.2 to 2.8
0
Manganese (Mn), % 0 to 0.1
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0 to 0.25
0.2 to 2.0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0