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7022 Aluminum vs. AWS BAg-20

7022 aluminum belongs to the aluminum alloys classification, while AWS BAg-20 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, 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 7022 aluminum and the bottom bar is AWS BAg-20.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
93
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
35
Tensile Strength: Ultimate (UTS), MPa 490 to 540
160

Thermal Properties

Latent Heat of Fusion, J/g 380
150
Melting Completion (Liquidus), °C 640
770
Melting Onset (Solidus), °C 480
680
Specific Heat Capacity, J/kg-K 870
340
Thermal Expansion, µm/m-K 24
21

Otherwise Unclassified Properties

Density, g/cm3 2.9
8.6
Embodied Carbon, kg CO2/kg material 8.5
30
Embodied Energy, MJ/kg 150
480

Common Calculations

Stiffness to Weight: Axial, points 13
6.0
Stiffness to Weight: Bending, points 47
17
Strength to Weight: Axial, points 47 to 51
5.1
Strength to Weight: Bending, points 47 to 50
7.6
Thermal Shock Resistance, points 21 to 23
5.9

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
0
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
37 to 39
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 2.6 to 3.7
0
Manganese (Mn), % 0.1 to 0.4
0
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
29 to 31
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 4.3 to 5.2
30 to 34
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0 to 0.15