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7049 Aluminum vs. Solder Alloy 112

7049 aluminum belongs to the aluminum alloys classification, while solder alloy 112 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 7049 aluminum and the bottom bar is solder alloy 112.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
33
Elongation at Break, % 6.2 to 7.0
35
Poisson's Ratio 0.32
0.4
Shear Modulus, GPa 27
12
Tensile Strength: Ultimate (UTS), MPa 510 to 530
41

Thermal Properties

Latent Heat of Fusion, J/g 370
41
Melting Completion (Liquidus), °C 640
220
Melting Onset (Solidus), °C 480
180
Specific Heat Capacity, J/kg-K 860
180
Thermal Conductivity, W/m-K 130
49
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
11
Electrical Conductivity: Equal Weight (Specific), % IACS 110
10

Otherwise Unclassified Properties

Density, g/cm3 3.1
9.3
Embodied Carbon, kg CO2/kg material 8.1
9.4
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1110
830

Common Calculations

Stiffness to Weight: Axial, points 13
2.0
Stiffness to Weight: Bending, points 45
11
Strength to Weight: Axial, points 46 to 47
1.2
Strength to Weight: Bending, points 46 to 47
2.8
Thermal Diffusivity, mm2/s 51
30
Thermal Shock Resistance, points 22 to 23
3.5

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0 to 0.0010
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.050
Cadmium (Cd), % 0
0 to 0.0020
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.35
0 to 0.020
Lead (Pb), % 0
49 to 50.5
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.25
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
49.5 to 50.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0 to 0.0010
Residuals, % 0 to 0.15
0