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A390.0 Aluminum vs. Z21210 Zinc

A390.0 aluminum belongs to the aluminum alloys classification, while Z21210 zinc belongs to the zinc alloys. There are 12 material properties with values for both materials. Properties with values for just one material (19, 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 A390.0 aluminum and the bottom bar is Z21210 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Tensile Strength: Ultimate (UTS), MPa 190 to 290
150 to 170

Thermal Properties

Melting Completion (Liquidus), °C 580
420
Melting Onset (Solidus), °C 480
420
Specific Heat Capacity, J/kg-K 880
400
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 20
32

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
28
Electrical Conductivity: Equal Weight (Specific), % IACS 67
35

Otherwise Unclassified Properties

Density, g/cm3 2.7
7.1

Common Calculations

Strength to Weight: Axial, points 19 to 30
5.7 to 6.4
Strength to Weight: Bending, points 27 to 36
8.6 to 9.4
Thermal Diffusivity, mm2/s 56
38