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C18900 Copper vs. Z21210 Zinc

C18900 copper belongs to the copper 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 (18, in this case) are not shown.

For each property being compared, the top bar is C18900 copper and the bottom bar is Z21210 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Tensile Strength: Ultimate (UTS), MPa 260 to 500
150 to 170

Thermal Properties

Melting Completion (Liquidus), °C 1080
420
Melting Onset (Solidus), °C 1020
420
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 17
32

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
28
Electrical Conductivity: Equal Weight (Specific), % IACS 30
35

Otherwise Unclassified Properties

Density, g/cm3 8.9
7.1

Common Calculations

Strength to Weight: Axial, points 8.2 to 16
5.7 to 6.4
Strength to Weight: Bending, points 10 to 16
8.6 to 9.4
Thermal Diffusivity, mm2/s 38
38