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Solder Alloy 181 vs. Zamak 3

Solder alloy 181 belongs to the otherwise unclassified metals classification, while Zamak 3 belongs to the zinc alloys. There are 22 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is solder alloy 181 and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
86
Elongation at Break, % 41
11
Poisson's Ratio 0.44
0.25
Shear Modulus, GPa 6.1
33
Tensile Strength: Ultimate (UTS), MPa 27
280

Thermal Properties

Latent Heat of Fusion, J/g 26
120
Melting Completion (Liquidus), °C 310
390
Melting Onset (Solidus), °C 300
380
Specific Heat Capacity, J/kg-K 130
410
Thermal Conductivity, W/m-K 24
110
Thermal Expansion, µm/m-K 29
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
38

Otherwise Unclassified Properties

Density, g/cm3 11
6.4
Embodied Carbon, kg CO2/kg material 6.2
3.0
Embodied Energy, MJ/kg 100
57

Common Calculations

Stiffness to Weight: Axial, points 0.86
7.5
Stiffness to Weight: Bending, points 7.7
23
Strength to Weight: Axial, points 0.66
12
Strength to Weight: Bending, points 1.8
15
Thermal Diffusivity, mm2/s 16
43
Thermal Shock Resistance, points 3.8
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), % 96.2 to 98
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), % 2.0 to 3.0
0
Tin (Sn), % 0 to 0.25
0 to 0.0030
Zinc (Zn), % 0 to 0.0010
95.3 to 96.5