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8090 Aluminum vs. AWS E630

8090 aluminum belongs to the aluminum alloys classification, while AWS E630 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 8090 aluminum and the bottom bar is AWS E630.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 3.5 to 13
8.0
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
76
Tensile Strength: Ultimate (UTS), MPa 340 to 490
1040

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Melting Completion (Liquidus), °C 660
1430
Melting Onset (Solidus), °C 600
1380
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 95 to 160
17
Thermal Expansion, µm/m-K 24
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 66
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 18
14
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.6
2.8
Embodied Energy, MJ/kg 170
40
Embodied Water, L/kg 1160
140

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 34 to 49
37
Strength to Weight: Bending, points 39 to 50
29
Thermal Diffusivity, mm2/s 36 to 60
4.5
Thermal Shock Resistance, points 15 to 22
28

Alloy Composition


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Aluminum (Al), % 93 to 98.4
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
16 to 16.8
Copper (Cu), % 1.0 to 1.6
3.3 to 4.0
Iron (Fe), % 0 to 0.3
71.6 to 75.9
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0.25 to 0.75
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0
4.5 to 5.0
Niobium (Nb), % 0
0.15 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0