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6018 Aluminum vs. AWS E309H

6018 aluminum belongs to the aluminum alloys classification, while AWS E309H 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 6018 aluminum and the bottom bar is AWS E309H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.0 to 9.1
34
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 290 to 300
620

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 170
15
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.7
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1180
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 28 to 29
22
Strength to Weight: Bending, points 34 to 35
21
Thermal Diffusivity, mm2/s 65
4.0
Thermal Shock Resistance, points 13
16

Alloy Composition

Aluminum (Al), % 93.1 to 97.8
0
Bismuth (Bi), % 0.4 to 0.7
0
Carbon (C), % 0
0.040 to 0.15
Chromium (Cr), % 0 to 0.1
22 to 25
Copper (Cu), % 0.15 to 0.4
0 to 0.75
Iron (Fe), % 0 to 0.7
55.8 to 65.5
Lead (Pb), % 0.4 to 1.2
0
Magnesium (Mg), % 0.6 to 1.2
0
Manganese (Mn), % 0.3 to 0.8
0.5 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0
12 to 14
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 1.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0