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AWS E2594 vs. 2218 Aluminum

AWS E2594 belongs to the iron alloys classification, while 2218 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 AWS E2594 and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
73
Elongation at Break, % 17
6.8 to 10
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
27
Tensile Strength: Ultimate (UTS), MPa 850
330 to 430

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
510
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 16
140
Thermal Expansion, µm/m-K 14
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 22
11
Density, g/cm3 7.8
3.1
Embodied Carbon, kg CO2/kg material 4.3
8.2
Embodied Energy, MJ/kg 60
150
Embodied Water, L/kg 190
1130

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 30
30 to 39
Strength to Weight: Bending, points 25
34 to 41
Thermal Diffusivity, mm2/s 4.3
52
Thermal Shock Resistance, points 21
15 to 19

Alloy Composition

Aluminum (Al), % 0
88.8 to 93.6
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 24 to 27
0 to 0.1
Copper (Cu), % 0 to 0.75
3.5 to 4.5
Iron (Fe), % 53.8 to 63.8
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0.5 to 2.0
0 to 0.2
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 8.0 to 10.5
1.7 to 2.3
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15