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ISO-WD43150 Magnesium vs. Z21210 Zinc

ISO-WD43150 magnesium belongs to the magnesium 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 ISO-WD43150 magnesium and the bottom bar is Z21210 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Tensile Strength: Ultimate (UTS), MPa 250
150 to 170

Thermal Properties

Melting Completion (Liquidus), °C 610
420
Melting Onset (Solidus), °C 590
420
Specific Heat Capacity, J/kg-K 990
400
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 27
32

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
28
Electrical Conductivity: Equal Weight (Specific), % IACS 170
35

Otherwise Unclassified Properties

Density, g/cm3 1.7
7.1

Common Calculations

Strength to Weight: Axial, points 41
5.7 to 6.4
Strength to Weight: Bending, points 52
8.6 to 9.4
Thermal Diffusivity, mm2/s 81
38