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7049 Aluminum vs. Solder Alloy 801

7049 aluminum belongs to the aluminum alloys classification, while solder alloy 801 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 7049 aluminum and the bottom bar is solder alloy 801.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
22
Elastic (Young's, Tensile) Modulus, GPa 70
53
Elongation at Break, % 6.2 to 7.0
33
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 27
20
Tensile Strength: Ultimate (UTS), MPa 510 to 530
55

Thermal Properties

Latent Heat of Fusion, J/g 370
64
Melting Completion (Liquidus), °C 640
200
Melting Onset (Solidus), °C 480
200
Specific Heat Capacity, J/kg-K 860
240
Thermal Conductivity, W/m-K 130
61
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
15
Electrical Conductivity: Equal Weight (Specific), % IACS 110
19

Otherwise Unclassified Properties

Density, g/cm3 3.1
7.2
Embodied Carbon, kg CO2/kg material 8.1
14
Embodied Energy, MJ/kg 140
240
Embodied Water, L/kg 1110
1140

Common Calculations

Stiffness to Weight: Axial, points 13
4.1
Stiffness to Weight: Bending, points 45
17
Strength to Weight: Axial, points 46 to 47
2.1
Strength to Weight: Bending, points 46 to 47
4.4
Thermal Diffusivity, mm2/s 51
36
Thermal Shock Resistance, points 22 to 23
3.3

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
0 to 0.050
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
0 to 0.070
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
89.9 to 91.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
8.5 to 9.5
Residuals, % 0 to 0.15
0