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Solder Alloy 142 vs. 6101 Aluminum

Solder alloy 142 belongs to the otherwise unclassified metals classification, while 6101 aluminum belongs to the aluminum alloys. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is solder alloy 142 and the bottom bar is 6101 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 33
68
Elongation at Break, % 37
10 to 25
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 12
26

Thermal Properties

Latent Heat of Fusion, J/g 42
400
Melting Completion (Liquidus), °C 210
650
Melting Onset (Solidus), °C 180
620
Specific Heat Capacity, J/kg-K 170
900
Thermal Conductivity, W/m-K 45
220 to 230
Thermal Expansion, µm/m-K 25
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
57 to 60
Electrical Conductivity: Equal Weight (Specific), % IACS 11
190 to 200

Otherwise Unclassified Properties

Density, g/cm3 9.3
2.7
Embodied Carbon, kg CO2/kg material 9.4
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 890
1190

Common Calculations

Stiffness to Weight: Axial, points 2.0
14
Stiffness to Weight: Bending, points 11
50
Thermal Diffusivity, mm2/s 28
89 to 93

Alloy Composition

Aluminum (Al), % 0 to 0.0010
97.6 to 99.4
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.5 to 3.5
0
Boron (B), % 0
0 to 0.060
Cadmium (Cd), % 0 to 0.0020
0
Chromium (Cr), % 0
0 to 0.030
Copper (Cu), % 0 to 0.080
0 to 0.1
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.5
Lead (Pb), % 47.4 to 50
0
Magnesium (Mg), % 0
0.35 to 0.8
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.3 to 0.7
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 47.5 to 48.5
0
Zinc (Zn), % 0 to 0.0010
0 to 0.1
Residuals, % 0
0 to 0.1