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AWS E318 vs. 2030 Aluminum

AWS E318 belongs to the iron alloys classification, while 2030 aluminum belongs to the aluminum 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 AWS E318 and the bottom bar is 2030 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 29
5.6 to 8.0
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 620
370 to 420

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
510
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
99

Otherwise Unclassified Properties

Base Metal Price, % relative 23
10
Density, g/cm3 7.9
3.1
Embodied Carbon, kg CO2/kg material 4.4
8.0
Embodied Energy, MJ/kg 62
150
Embodied Water, L/kg 160
1140

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 22
33 to 38
Strength to Weight: Bending, points 20
37 to 40
Thermal Diffusivity, mm2/s 4.0
50
Thermal Shock Resistance, points 16
16 to 19

Alloy Composition

Aluminum (Al), % 0
88.9 to 95.2
Bismuth (Bi), % 0
0 to 0.2
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 20
0 to 0.1
Copper (Cu), % 0 to 0.75
3.3 to 4.5
Iron (Fe), % 57.6 to 69.5
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 0
0.5 to 1.3
Manganese (Mn), % 0.5 to 2.5
0.2 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 11 to 14
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3