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518.0 Aluminum vs. AWS BAu-5

518.0 aluminum belongs to the aluminum alloys classification, while AWS BAu-5 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 518.0 aluminum and the bottom bar is AWS BAu-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
140
Poisson's Ratio 0.33
0.37
Shear Modulus, GPa 25
50
Tensile Strength: Ultimate (UTS), MPa 310
210

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Melting Completion (Liquidus), °C 620
1170
Melting Onset (Solidus), °C 560
1140
Specific Heat Capacity, J/kg-K 900
280
Thermal Expansion, µm/m-K 24
12

Otherwise Unclassified Properties

Density, g/cm3 2.7
13

Common Calculations

Stiffness to Weight: Axial, points 14
5.8
Stiffness to Weight: Bending, points 51
13
Strength to Weight: Axial, points 32
4.5
Strength to Weight: Bending, points 38
6.0
Thermal Shock Resistance, points 14
9.0

Alloy Composition

Aluminum (Al), % 88.1 to 92.5
0
Copper (Cu), % 0 to 0.25
0
Gold (Au), % 0
29.5 to 30.5
Iron (Fe), % 0 to 1.8
0
Magnesium (Mg), % 7.5 to 8.5
0
Manganese (Mn), % 0 to 0.35
0
Nickel (Ni), % 0 to 0.15
35.5 to 36.4
Palladium (Pd), % 0
33.5 to 34.5
Silicon (Si), % 0 to 0.35
0
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0
0 to 0.15