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2017A Aluminum vs. Solder Alloy 122

2017A 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 2017A 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, % 2.2 to 14
30
Poisson's Ratio 0.33
0.43
Shear Modulus, GPa 27
6.9
Tensile Strength: Ultimate (UTS), MPa 200 to 460
30

Thermal Properties

Latent Heat of Fusion, J/g 390
27
Melting Completion (Liquidus), °C 650
300
Melting Onset (Solidus), °C 510
270
Specific Heat Capacity, J/kg-K 880
140
Thermal Conductivity, W/m-K 150
25
Thermal Expansion, µm/m-K 23
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 100
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
75
Density, g/cm3 3.0
11
Embodied Carbon, kg CO2/kg material 8.2
5.0
Embodied Energy, MJ/kg 150
84
Embodied Water, L/kg 1140
540

Common Calculations

Stiffness to Weight: Axial, points 13
1.0
Stiffness to Weight: Bending, points 46
8.2
Strength to Weight: Axial, points 19 to 42
0.77
Strength to Weight: Bending, points 26 to 44
2.0
Thermal Diffusivity, mm2/s 56
17
Thermal Shock Resistance, points 8.9 to 20
3.9

Alloy Composition

Aluminum (Al), % 91.3 to 95.5
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
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
88.4 to 90.5
Magnesium (Mg), % 0.4 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.2 to 0.8
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
9.5 to 10.5
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.25
0 to 0.0010
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0