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Solder Alloy 151 vs. Zamak 5

Solder alloy 151 belongs to the otherwise unclassified metals classification, while Zamak 5 belongs to the zinc alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 151 and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 39
87
Elongation at Break, % 37
6.3
Poisson's Ratio 0.37
0.25
Shear Modulus, GPa 14
33
Tensile Strength: Ultimate (UTS), MPa 46
330

Thermal Properties

Latent Heat of Fusion, J/g 47
120
Melting Completion (Liquidus), °C 150
390
Melting Onset (Solidus), °C 150
380
Specific Heat Capacity, J/kg-K 190
410
Thermal Conductivity, W/m-K 44
110
Thermal Expansion, µm/m-K 26
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
26
Electrical Conductivity: Equal Weight (Specific), % IACS 10
37

Otherwise Unclassified Properties

Density, g/cm3 8.8
6.4
Embodied Carbon, kg CO2/kg material 9.2
3.0
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 920
380

Common Calculations

Stiffness to Weight: Axial, points 2.5
7.5
Stiffness to Weight: Bending, points 13
23
Strength to Weight: Axial, points 1.4
14
Strength to Weight: Bending, points 3.2
16
Thermal Diffusivity, mm2/s 26
42
Thermal Shock Resistance, points 3.2
9.9

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), % 17.5 to 18.5
0 to 0.0050
Copper (Cu), % 0 to 0.080
0.7 to 1.3
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), % 30.3 to 33
0 to 0.0050
Magnesium (Mg), % 0
0.025 to 0.080
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), % 49.5 to 50.5
0 to 0.0030
Zinc (Zn), % 0 to 0.0010
94.3 to 95.7