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4343 Aluminum vs. Solder Alloy 103

4343 aluminum belongs to the aluminum alloys classification, while solder alloy 103 belongs to the otherwise unclassified metals. 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 4343 aluminum and the bottom bar is solder alloy 103.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
37
Elongation at Break, % 4.4
47
Poisson's Ratio 0.33
0.39
Shear Modulus, GPa 27
13
Tensile Strength: Ultimate (UTS), MPa 110
52

Thermal Properties

Latent Heat of Fusion, J/g 510
45
Melting Completion (Liquidus), °C 620
190
Melting Onset (Solidus), °C 580
180
Specific Heat Capacity, J/kg-K 900
180
Thermal Conductivity, W/m-K 180
50
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
11
Electrical Conductivity: Equal Weight (Specific), % IACS 150
12

Otherwise Unclassified Properties

Density, g/cm3 2.6
8.9
Embodied Carbon, kg CO2/kg material 7.9
10
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 1100
910

Common Calculations

Stiffness to Weight: Axial, points 15
2.3
Stiffness to Weight: Bending, points 53
12
Strength to Weight: Axial, points 12
1.6
Strength to Weight: Bending, points 20
3.5
Thermal Diffusivity, mm2/s 77
30
Thermal Shock Resistance, points 5.2
4.3

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.25
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.8
0 to 0.020
Lead (Pb), % 0
38.8 to 40.5
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 6.8 to 8.2
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
59.5 to 60.5
Zinc (Zn), % 0 to 0.2
0 to 0.0010
Residuals, % 0 to 0.15
0