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Solder Alloy 142 vs. EN AC-21200 Aluminum

Solder alloy 142 belongs to the otherwise unclassified metals classification, while EN AC-21200 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, 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 EN AC-21200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 33
71
Elongation at Break, % 37
3.9 to 6.2
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 12
27
Tensile Strength: Ultimate (UTS), MPa 43
410 to 440

Thermal Properties

Latent Heat of Fusion, J/g 42
390
Melting Completion (Liquidus), °C 210
660
Melting Onset (Solidus), °C 180
550
Specific Heat Capacity, J/kg-K 170
880
Thermal Conductivity, W/m-K 45
130
Thermal Expansion, µm/m-K 25
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
34
Electrical Conductivity: Equal Weight (Specific), % IACS 11
100

Otherwise Unclassified Properties

Density, g/cm3 9.3
3.0
Embodied Carbon, kg CO2/kg material 9.4
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 890
1150

Common Calculations

Stiffness to Weight: Axial, points 2.0
13
Stiffness to Weight: Bending, points 11
46
Strength to Weight: Axial, points 1.3
38 to 40
Strength to Weight: Bending, points 2.9
41 to 43
Thermal Diffusivity, mm2/s 28
49
Thermal Shock Resistance, points 3.7
18 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
93.3 to 95.7
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.5 to 3.5
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
4.0 to 5.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.2
Lead (Pb), % 47.4 to 50
0 to 0.030
Magnesium (Mg), % 0
0.15 to 0.5
Manganese (Mn), % 0
0.2 to 0.5
Nickel (Ni), % 0 to 0.010
0 to 0.050
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 47.5 to 48.5
0 to 0.030
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.0010
0 to 0.1
Residuals, % 0
0 to 0.1