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C72900 Copper-nickel vs. Z21210 Zinc

C72900 copper-nickel 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 C72900 copper-nickel and the bottom bar is Z21210 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Tensile Strength: Ultimate (UTS), MPa 870 to 1080
150 to 170

Thermal Properties

Melting Completion (Liquidus), °C 1120
420
Melting Onset (Solidus), °C 950
420
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 29
110
Thermal Expansion, µm/m-K 17
32

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
35

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.1

Common Calculations

Strength to Weight: Axial, points 27 to 34
5.7 to 6.4
Strength to Weight: Bending, points 23 to 27
8.6 to 9.4
Thermal Diffusivity, mm2/s 8.6
38