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Solder Alloy 161 vs. Zamak 7

Solder alloy 161 belongs to the otherwise unclassified metals classification, while Zamak 7 belongs to the zinc alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 161 and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
86
Elongation at Break, % 44
13
Poisson's Ratio 0.39
0.25
Shear Modulus, GPa 14
33
Tensile Strength: Ultimate (UTS), MPa 53
280

Thermal Properties

Latent Heat of Fusion, J/g 48
120
Melting Completion (Liquidus), °C 190
390
Melting Onset (Solidus), °C 180
380
Specific Heat Capacity, J/kg-K 190
410
Thermal Conductivity, W/m-K 49
110
Thermal Expansion, µm/m-K 25
27

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 8.9
6.4
Embodied Carbon, kg CO2/kg material 11
3.0
Embodied Energy, MJ/kg 180
57
Embodied Water, L/kg 910
380

Common Calculations

Stiffness to Weight: Axial, points 2.4
7.5
Stiffness to Weight: Bending, points 13
23
Strength to Weight: Axial, points 1.7
12
Strength to Weight: Bending, points 3.5
15
Thermal Diffusivity, mm2/s 29
43
Thermal Shock Resistance, points 4.1
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 0.0020
Copper (Cu), % 1.2 to 1.6
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 0.075
Lead (Pb), % 37.3 to 39.3
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 0 to 0.010
0.0050 to 0.020
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 59.5 to 60.5
0 to 0.0010
Zinc (Zn), % 0 to 0.0010
95.3 to 96.5