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384.0 Aluminum vs. AWS BAg-8a

384.0 aluminum belongs to the aluminum alloys classification, while AWS BAg-8a belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (17, 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 384.0 aluminum and the bottom bar is AWS BAg-8a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
83
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 28
31
Tensile Strength: Ultimate (UTS), MPa 330
150

Thermal Properties

Latent Heat of Fusion, J/g 550
140
Melting Completion (Liquidus), °C 580
770
Melting Onset (Solidus), °C 530
770
Specific Heat Capacity, J/kg-K 870
290
Thermal Expansion, µm/m-K 21
19

Otherwise Unclassified Properties

Density, g/cm3 2.9
10

Common Calculations

Stiffness to Weight: Axial, points 14
4.6
Stiffness to Weight: Bending, points 49
15
Strength to Weight: Axial, points 32
4.2
Strength to Weight: Bending, points 37
6.3
Thermal Shock Resistance, points 15
6.7

Alloy Composition

Aluminum (Al), % 77.3 to 86.5
0
Copper (Cu), % 3.0 to 4.5
26.4 to 28.8
Iron (Fe), % 0 to 1.3
0
Lithium (Li), % 0
0.25 to 0.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 10.5 to 12
0
Silver (Ag), % 0
71 to 73
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0
0 to 0.15