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390.0 Aluminum vs. AWS E385

390.0 aluminum belongs to the aluminum alloys classification, while AWS E385 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 390.0 aluminum and the bottom bar is AWS E385.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 1.0
34
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
79
Tensile Strength: Ultimate (UTS), MPa 280 to 300
580

Thermal Properties

Latent Heat of Fusion, J/g 640
300
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 880
460
Thermal Conductivity, W/m-K 130
14
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 7.3
5.8
Embodied Energy, MJ/kg 130
79
Embodied Water, L/kg 950
200

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 28 to 30
20
Strength to Weight: Bending, points 35 to 36
19
Thermal Diffusivity, mm2/s 56
3.6
Thermal Shock Resistance, points 14 to 15
15

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19.5 to 21.5
Copper (Cu), % 4.0 to 5.0
1.2 to 2.0
Iron (Fe), % 0 to 1.3
41.8 to 50.1
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
1.0 to 2.5
Molybdenum (Mo), % 0
4.2 to 5.2
Nickel (Ni), % 0
24 to 26
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 16 to 18
0 to 0.9
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0