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3105 Aluminum vs. Solder Alloy 141

3105 aluminum belongs to the aluminum alloys classification, while solder alloy 141 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 3105 aluminum and the bottom bar is solder alloy 141.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
37
Elongation at Break, % 1.1 to 20
39
Poisson's Ratio 0.33
0.39
Shear Modulus, GPa 26
13
Tensile Strength: Ultimate (UTS), MPa 120 to 240
54

Thermal Properties

Latent Heat of Fusion, J/g 400
46
Melting Completion (Liquidus), °C 660
190
Melting Onset (Solidus), °C 640
180
Specific Heat Capacity, J/kg-K 900
180
Thermal Conductivity, W/m-K 170
48
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
10
Electrical Conductivity: Equal Weight (Specific), % IACS 140
10

Otherwise Unclassified Properties

Density, g/cm3 2.8
8.9
Embodied Carbon, kg CO2/kg material 8.2
11
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 1180
970

Common Calculations

Stiffness to Weight: Axial, points 14
2.3
Stiffness to Weight: Bending, points 50
13
Strength to Weight: Axial, points 12 to 24
1.7
Strength to Weight: Bending, points 20 to 31
3.6
Thermal Diffusivity, mm2/s 68
29
Thermal Shock Resistance, points 5.2 to 11
4.3

Alloy Composition

Aluminum (Al), % 96 to 99.5
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
2.0 to 3.0
Cadmium (Cd), % 0
0 to 0.0020
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.7
0 to 0.020
Lead (Pb), % 0
35.9 to 38.5
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.6
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
59.5 to 60.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0 to 0.0010
Residuals, % 0 to 0.15
0