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2011 Aluminum vs. Solder Alloy 122

2011 aluminum belongs to the aluminum alloys classification, while solder alloy 122 belongs to the otherwise unclassified metals. 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 2011 aluminum and the bottom bar is solder alloy 122.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
20
Elongation at Break, % 8.5 to 18
30
Poisson's Ratio 0.33
0.43
Shear Modulus, GPa 27
6.9
Tensile Strength: Ultimate (UTS), MPa 310 to 420
30

Thermal Properties

Latent Heat of Fusion, J/g 390
27
Melting Completion (Liquidus), °C 640
300
Melting Onset (Solidus), °C 540
270
Specific Heat Capacity, J/kg-K 870
140
Thermal Conductivity, W/m-K 140 to 170
25
Thermal Expansion, µm/m-K 23
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 45
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 100 to 130
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
75
Density, g/cm3 3.1
11
Embodied Carbon, kg CO2/kg material 7.9
5.0
Embodied Energy, MJ/kg 150
84
Embodied Water, L/kg 1150
540

Common Calculations

Stiffness to Weight: Axial, points 13
1.0
Stiffness to Weight: Bending, points 44
8.2
Strength to Weight: Axial, points 27 to 37
0.77
Strength to Weight: Bending, points 32 to 40
2.0
Thermal Diffusivity, mm2/s 51 to 64
17
Thermal Shock Resistance, points 14 to 19
3.9

Alloy Composition

Aluminum (Al), % 91.3 to 94.6
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0.2 to 0.6
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 5.0 to 6.0
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), % 0.2 to 0.6
88.4 to 90.5
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.4
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
9.5 to 10.5
Zinc (Zn), % 0 to 0.3
0 to 0.0010
Residuals, % 0 to 0.15
0