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5456 Aluminum vs. AWS BAu-2

5456 aluminum belongs to the aluminum alloys classification, while AWS BAu-2 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 5456 aluminum and the bottom bar is AWS BAu-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
100
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 26
36
Tensile Strength: Ultimate (UTS), MPa 320 to 340
150

Thermal Properties

Latent Heat of Fusion, J/g 390
92
Melting Completion (Liquidus), °C 640
890
Melting Onset (Solidus), °C 570
890
Specific Heat Capacity, J/kg-K 900
180
Thermal Expansion, µm/m-K 24
15

Otherwise Unclassified Properties

Density, g/cm3 2.7
17

Common Calculations

Stiffness to Weight: Axial, points 14
3.3
Stiffness to Weight: Bending, points 50
9.1
Strength to Weight: Axial, points 33 to 35
2.4
Strength to Weight: Bending, points 38 to 40
3.6
Thermal Shock Resistance, points 14 to 15
7.1

Alloy Composition

Aluminum (Al), % 92 to 94.8
0
Chromium (Cr), % 0.050 to 0.2
0
Copper (Cu), % 0 to 0.1
19.4 to 20.5
Gold (Au), % 0
79.5 to 80.5
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.5 to 1.0
0
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.15