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7108A Aluminum vs. AWS BVAg-8b

7108A aluminum belongs to the aluminum alloys classification, while AWS BVAg-8b belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (16, 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 7108A aluminum and the bottom bar is AWS BVAg-8b.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
84
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 26
31
Tensile Strength: Ultimate (UTS), MPa 350
170

Thermal Properties

Latent Heat of Fusion, J/g 380
140
Melting Completion (Liquidus), °C 630
800
Melting Onset (Solidus), °C 520
780
Specific Heat Capacity, J/kg-K 870
280
Thermal Expansion, µm/m-K 24
19

Otherwise Unclassified Properties

Density, g/cm3 2.9
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 47
15
Strength to Weight: Axial, points 33 to 34
4.7
Strength to Weight: Bending, points 38
6.8
Thermal Shock Resistance, points 15 to 16
7.6

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
26.8 to 29.2
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 0
0 to 0.0020
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0
0.3 to 0.7
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
70.5 to 72.5
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0 to 0.0010
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0