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7108A Aluminum vs. AWS E2209

7108A aluminum belongs to the aluminum alloys classification, while AWS E2209 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 E2209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 11 to 13
23
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 350
770

Thermal Properties

Latent Heat of Fusion, J/g 380
300
Melting Completion (Liquidus), °C 630
1440
Melting Onset (Solidus), °C 520
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 150
16
Thermal Expansion, µm/m-K 24
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.3
4.0
Embodied Energy, MJ/kg 150
55
Embodied Water, L/kg 1150
170

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 33 to 34
27
Strength to Weight: Bending, points 38
24
Thermal Diffusivity, mm2/s 59
4.3
Thermal Shock Resistance, points 15 to 16
20

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0 to 0.040
21.5 to 23.5
Copper (Cu), % 0 to 0.050
0 to 0.75
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
58.4 to 66.9
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0.5 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
8.5 to 10.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0