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Solder Alloy 801 vs. 2218 Aluminum

Solder alloy 801 belongs to the otherwise unclassified metals classification, while 2218 aluminum belongs to the aluminum alloys. There are 24 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 801 and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 22
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 53
73
Elongation at Break, % 33
6.8 to 10
Poisson's Ratio 0.35
0.33
Shear Modulus, GPa 20
27
Tensile Strength: Ultimate (UTS), MPa 55
330 to 430

Thermal Properties

Latent Heat of Fusion, J/g 64
390
Melting Completion (Liquidus), °C 200
640
Melting Onset (Solidus), °C 200
510
Specific Heat Capacity, J/kg-K 240
870
Thermal Conductivity, W/m-K 61
140
Thermal Expansion, µm/m-K 22
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
37
Electrical Conductivity: Equal Weight (Specific), % IACS 19
110

Otherwise Unclassified Properties

Density, g/cm3 7.2
3.1
Embodied Carbon, kg CO2/kg material 14
8.2
Embodied Energy, MJ/kg 240
150
Embodied Water, L/kg 1140
1130

Common Calculations

Stiffness to Weight: Axial, points 4.1
13
Stiffness to Weight: Bending, points 17
45
Strength to Weight: Axial, points 2.1
30 to 39
Strength to Weight: Bending, points 4.4
34 to 41
Thermal Diffusivity, mm2/s 36
52
Thermal Shock Resistance, points 3.3
15 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
88.8 to 93.6
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
3.5 to 4.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 1.0
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
1.7 to 2.3
Silicon (Si), % 0
0 to 0.9
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 89.9 to 91.5
0
Zinc (Zn), % 8.5 to 9.5
0 to 0.25
Residuals, % 0
0 to 0.15