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AWS BAg-18 vs. 8090 Aluminum

AWS BAg-18 belongs to the otherwise unclassified metals classification, while 8090 aluminum belongs to the aluminum alloys. 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 AWS BAg-18 and the bottom bar is 8090 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
67
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 30
25
Tensile Strength: Ultimate (UTS), MPa 170
340 to 490

Thermal Properties

Latent Heat of Fusion, J/g 130
400
Melting Completion (Liquidus), °C 720
660
Melting Onset (Solidus), °C 600
600
Specific Heat Capacity, J/kg-K 280
960
Thermal Expansion, µm/m-K 19
24

Otherwise Unclassified Properties

Density, g/cm3 9.7
2.7
Embodied Carbon, kg CO2/kg material 59
8.6
Embodied Energy, MJ/kg 930
170

Common Calculations

Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 15
50
Strength to Weight: Axial, points 4.9
34 to 49
Strength to Weight: Bending, points 7.0
39 to 50
Thermal Shock Resistance, points 7.7
15 to 22

Alloy Composition

Aluminum (Al), % 0
93 to 98.4
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 28.4 to 31.5
1.0 to 1.6
Iron (Fe), % 0
0 to 0.3
Lithium (Li), % 0
2.2 to 2.7
Magnesium (Mg), % 0
0.6 to 1.3
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.2
Silver (Ag), % 59 to 61
0
Tin (Sn), % 9.5 to 10.5
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0.040 to 0.16
Residuals, % 0 to 0.15
0 to 0.15