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Solder Alloy 703 vs. Z21210 Zinc

Solder alloy 703 belongs to the otherwise unclassified metals 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 (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is Z21210 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Tensile Strength: Ultimate (UTS), MPa 57
150 to 170

Thermal Properties

Melting Completion (Liquidus), °C 220
420
Melting Onset (Solidus), °C 220
420
Specific Heat Capacity, J/kg-K 220
400
Thermal Conductivity, W/m-K 55
110
Thermal Expansion, µm/m-K 22
32

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
28
Electrical Conductivity: Equal Weight (Specific), % IACS 17
35

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.1

Common Calculations

Strength to Weight: Axial, points 2.1
5.7 to 6.4
Strength to Weight: Bending, points 4.4
8.6 to 9.4
Thermal Diffusivity, mm2/s 33
38