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Solder Alloy 131 vs. 4015 Aluminum

Solder alloy 131 belongs to the otherwise unclassified metals classification, while 4015 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 131 and the bottom bar is 4015 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
70
Elongation at Break, % 47
1.1 to 23
Poisson's Ratio 0.39
0.33
Shear Modulus, GPa 14
26
Tensile Strength: Ultimate (UTS), MPa 31
130 to 220

Thermal Properties

Latent Heat of Fusion, J/g 46
420
Melting Completion (Liquidus), °C 180
640
Melting Onset (Solidus), °C 180
600
Specific Heat Capacity, J/kg-K 190
900
Thermal Conductivity, W/m-K 55
160
Thermal Expansion, µm/m-K 25
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
41
Electrical Conductivity: Equal Weight (Specific), % IACS 12
130

Otherwise Unclassified Properties

Density, g/cm3 8.8
2.7
Embodied Carbon, kg CO2/kg material 11
8.1
Embodied Energy, MJ/kg 180
150
Embodied Water, L/kg 940
1160

Common Calculations

Stiffness to Weight: Axial, points 2.4
14
Stiffness to Weight: Bending, points 13
50
Strength to Weight: Axial, points 1.0
13 to 22
Strength to Weight: Bending, points 2.5
21 to 30
Thermal Diffusivity, mm2/s 33
66
Thermal Shock Resistance, points 2.4
5.7 to 9.7

Alloy Composition


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Aluminum (Al), % 0 to 0.0010
94.9 to 97.9
Antimony (Sb), % 0.2 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
0 to 0.2
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.7
Lead (Pb), % 35.5 to 37.3
0
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0
0.6 to 1.2
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
1.4 to 2.2
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 62.5 to 63.5
0
Zinc (Zn), % 0 to 0.0010
0 to 0.2
Residuals, % 0
0 to 0.15