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5021 Aluminum vs. Commercially Pure Silver

5021 aluminum belongs to the aluminum alloys classification, while commercially pure silver belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (9, 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 5021 aluminum and the bottom bar is commercially pure silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 1.1 to 3.4
1.1 to 29
Poisson's Ratio 0.33
0.37
Shear Modulus, GPa 26
26
Shear Strength, MPa 170
120 to 190
Tensile Strength: Ultimate (UTS), MPa 300 to 310
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 400
110
Melting Completion (Liquidus), °C 640
960
Melting Onset (Solidus), °C 590
960
Specific Heat Capacity, J/kg-K 900
240
Thermal Conductivity, W/m-K 140
420
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
100
Electrical Conductivity: Equal Weight (Specific), % IACS 120
87

Otherwise Unclassified Properties

Density, g/cm3 2.7
10

Common Calculations

Stiffness to Weight: Axial, points 14
3.8
Stiffness to Weight: Bending, points 50
13
Strength to Weight: Axial, points 30 to 32
4.9 to 8.9
Strength to Weight: Bending, points 37
6.9 to 10
Thermal Diffusivity, mm2/s 57
170
Thermal Shock Resistance, points 13 to 14
9.5 to 17

Alloy Composition

Aluminum (Al), % 95.2 to 97.7
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 2.2 to 2.8
0
Manganese (Mn), % 0.1 to 0.5
0
Silicon (Si), % 0 to 0.4
0
Silver (Ag), % 0
99.9 to 100
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0
0 to 0.1