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7010 Aluminum vs. Z21210 Zinc

7010 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 7010 aluminum and the bottom bar is Z21210 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Tensile Strength: Ultimate (UTS), MPa 520 to 590
150 to 170

Thermal Properties

Melting Completion (Liquidus), °C 630
420
Melting Onset (Solidus), °C 480
420
Specific Heat Capacity, J/kg-K 860
400
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 24
32

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
28
Electrical Conductivity: Equal Weight (Specific), % IACS 120
35

Otherwise Unclassified Properties

Density, g/cm3 3.0
7.1

Common Calculations

Strength to Weight: Axial, points 47 to 54
5.7 to 6.4
Strength to Weight: Bending, points 47 to 52
8.6 to 9.4
Thermal Diffusivity, mm2/s 58
38