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Solder Alloy 703 vs. Z41321 Zinc

Solder alloy 703 belongs to the otherwise unclassified metals classification, while Z41321 zinc belongs to the zinc alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is Z41321 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
87
Elongation at Break, % 35
60
Poisson's Ratio 0.36
0.25
Shear Modulus, GPa 19
35
Tensile Strength: Ultimate (UTS), MPa 57
190

Thermal Properties

Latent Heat of Fusion, J/g 61
110
Melting Completion (Liquidus), °C 220
410
Melting Onset (Solidus), °C 220
400
Specific Heat Capacity, J/kg-K 220
390
Thermal Conductivity, W/m-K 55
110
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
27
Electrical Conductivity: Equal Weight (Specific), % IACS 17
37

Otherwise Unclassified Properties

Density, g/cm3 7.4
6.6
Embodied Carbon, kg CO2/kg material 18
2.8
Embodied Energy, MJ/kg 300
54

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.4
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 2.1
7.9
Strength to Weight: Bending, points 4.4
11
Thermal Diffusivity, mm2/s 33
44
Thermal Shock Resistance, points 3.7
5.9

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.010
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0 to 0.0050
Copper (Cu), % 0 to 0.050
0.5 to 1.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.010
Lead (Pb), % 0 to 0.070
0 to 0.010
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 3.3 to 3.7
0
Tin (Sn), % 95.8 to 96.7
0 to 0.0030
Titanium (Ti), % 0
0.080 to 0.18
Zinc (Zn), % 0 to 0.0010
98.8 to 99.42