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Solder Alloy 503 vs. Zamak 2

Solder alloy 503 belongs to the otherwise unclassified metals classification, while Zamak 2 belongs to the zinc alloys. There are 22 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 503 and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 54
87
Elongation at Break, % 30
6.0
Poisson's Ratio 0.36
0.26
Shear Modulus, GPa 20
33
Tensile Strength: Ultimate (UTS), MPa 57
360

Thermal Properties

Latent Heat of Fusion, J/g 69
130
Melting Completion (Liquidus), °C 380
390
Melting Onset (Solidus), °C 220
380
Specific Heat Capacity, J/kg-K 230
410
Thermal Conductivity, W/m-K 61
110
Thermal Expansion, µm/m-K 22
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
25
Electrical Conductivity: Equal Weight (Specific), % IACS 17
35

Otherwise Unclassified Properties

Density, g/cm3 7.5
6.5
Embodied Carbon, kg CO2/kg material 16
3.0
Embodied Energy, MJ/kg 270
57

Common Calculations

Stiffness to Weight: Axial, points 4.1
7.5
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 2.1
15
Strength to Weight: Bending, points 4.4
17
Thermal Diffusivity, mm2/s 35
41
Thermal Shock Resistance, points 3.5
11

Alloy Composition

Aluminum (Al), % 0 to 0.0010
3.5 to 4.3
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.080
0
Cadmium (Cd), % 0 to 0.0020
0 to 0.0050
Copper (Cu), % 5.5 to 6.5
2.5 to 3.3
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), % 0 to 0.070
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), % 1.8 to 2.2
0
Tin (Sn), % 90.8 to 92.7
0 to 0.0030
Zinc (Zn), % 0 to 0.0010
92.2 to 94