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Solder Alloy 702 vs. Z40101 Zinc

Solder alloy 702 belongs to the otherwise unclassified metals classification, while Z40101 zinc belongs to the zinc alloys. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 702 and the bottom bar is Z40101 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
87
Elongation at Break, % 21
44
Poisson's Ratio 0.36
0.25
Shear Modulus, GPa 19
35
Tensile Strength: Ultimate (UTS), MPa 53
130

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 62
110
Thermal Expansion, µm/m-K 22
26

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 7.4
6.6
Embodied Carbon, kg CO2/kg material 17
2.8
Embodied Energy, MJ/kg 290
53

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.4
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 2.0
5.7
Strength to Weight: Bending, points 4.2
8.9
Thermal Diffusivity, mm2/s 38
44
Thermal Shock Resistance, points 3.4
4.2

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
0.080 to 0.4
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), % 2.8 to 3.2
0
Tin (Sn), % 96.3 to 97.2
0 to 0.0030
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.0010
99.542 to 99.92