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Solder Alloy 103 vs. Zamak 3

Solder alloy 103 belongs to the otherwise unclassified metals classification, while Zamak 3 belongs to the zinc alloys. There are 23 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is solder alloy 103 and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
86
Elongation at Break, % 47
11
Poisson's Ratio 0.39
0.25
Shear Modulus, GPa 13
33
Tensile Strength: Ultimate (UTS), MPa 52
280

Thermal Properties

Latent Heat of Fusion, J/g 45
120
Melting Completion (Liquidus), °C 190
390
Melting Onset (Solidus), °C 180
380
Specific Heat Capacity, J/kg-K 180
410
Thermal Conductivity, W/m-K 50
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
27
Electrical Conductivity: Equal Weight (Specific), % IACS 12
38

Otherwise Unclassified Properties

Density, g/cm3 8.9
6.4
Embodied Carbon, kg CO2/kg material 10
3.0
Embodied Energy, MJ/kg 180
57
Embodied Water, L/kg 910
380

Common Calculations

Stiffness to Weight: Axial, points 2.3
7.5
Stiffness to Weight: Bending, points 12
23
Strength to Weight: Axial, points 1.6
12
Strength to Weight: Bending, points 3.5
15
Thermal Diffusivity, mm2/s 30
43
Thermal Shock Resistance, points 4.3
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.0010
3.5 to 4.3
Antimony (Sb), % 0 to 0.2
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 0.080
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.1
Lead (Pb), % 38.8 to 40.5
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Nickel (Ni), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0
0 to 0.030
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 59.5 to 60.5
0 to 0.0030
Zinc (Zn), % 0 to 0.0010
95.3 to 96.5