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7049 Aluminum vs. AWS BAg-20

7049 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 (15, 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 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 27
35
Tensile Strength: Ultimate (UTS), MPa 510 to 530
160

Thermal Properties

Latent Heat of Fusion, J/g 370
150
Melting Completion (Liquidus), °C 640
770
Melting Onset (Solidus), °C 480
680
Specific Heat Capacity, J/kg-K 860
340
Thermal Expansion, µm/m-K 23
21

Otherwise Unclassified Properties

Density, g/cm3 3.1
8.6
Embodied Carbon, kg CO2/kg material 8.1
30
Embodied Energy, MJ/kg 140
480

Common Calculations

Stiffness to Weight: Axial, points 13
6.0
Stiffness to Weight: Bending, points 45
17
Strength to Weight: Axial, points 46 to 47
5.1
Strength to Weight: Bending, points 46 to 47
7.6
Thermal Shock Resistance, points 22 to 23
5.9

Alloy Composition


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Aluminum (Al), % 85.7 to 89.5
0
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
37 to 39
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Silicon (Si), % 0 to 0.25
0
Silver (Ag), % 0
29 to 31
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
30 to 34
Residuals, % 0 to 0.15
0 to 0.15