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Z21721 Zinc vs. Solder Alloy 402

Z21721 zinc belongs to the zinc alloys classification, while solder alloy 402 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Z21721 zinc and the bottom bar is solder alloy 402.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
52
Elongation at Break, % 40
20
Poisson's Ratio 0.25
0.36
Shear Modulus, GPa 35
19
Tensile Strength: Ultimate (UTS), MPa 150
57

Thermal Properties

Latent Heat of Fusion, J/g 110
64
Melting Completion (Liquidus), °C 410
310
Melting Onset (Solidus), °C 390
230
Specific Heat Capacity, J/kg-K 390
230
Thermal Conductivity, W/m-K 110
61
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
15
Electrical Conductivity: Equal Weight (Specific), % IACS 37
18

Otherwise Unclassified Properties

Density, g/cm3 6.6
7.3
Embodied Carbon, kg CO2/kg material 2.8
15
Embodied Energy, MJ/kg 53
250
Embodied Water, L/kg 340
1180

Common Calculations

Stiffness to Weight: Axial, points 7.3
3.9
Stiffness to Weight: Bending, points 22
17
Strength to Weight: Axial, points 6.4
2.2
Strength to Weight: Bending, points 9.6
4.5
Thermal Diffusivity, mm2/s 44
37
Thermal Shock Resistance, points 4.8
3.6

Alloy Composition

Aluminum (Al), % 0 to 0.0020
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0 to 0.070
0 to 0.0020
Copper (Cu), % 0 to 0.0050
2.5 to 3.5
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.010
0 to 0.020
Lead (Pb), % 0 to 1.0
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
95.9 to 97.5
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 98.9 to 100
0 to 0.0010