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AWS E385 vs. 707.0 Aluminum

AWS E385 belongs to the iron alloys classification, while 707.0 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 E385 and the bottom bar is 707.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 34
1.7 to 3.4
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 580
270 to 300

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1390
600
Specific Heat Capacity, J/kg-K 460
880
Thermal Conductivity, W/m-K 14
150
Thermal Expansion, µm/m-K 14
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
37
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 8.1
2.9
Embodied Carbon, kg CO2/kg material 5.8
8.3
Embodied Energy, MJ/kg 79
150
Embodied Water, L/kg 200
1140

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 20
26 to 29
Strength to Weight: Bending, points 19
32 to 34
Thermal Diffusivity, mm2/s 3.6
58
Thermal Shock Resistance, points 15
12 to 13

Alloy Composition


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Aluminum (Al), % 0
90.5 to 93.6
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19.5 to 21.5
0.2 to 0.4
Copper (Cu), % 1.2 to 2.0
0 to 0.2
Iron (Fe), % 41.8 to 50.1
0 to 0.8
Magnesium (Mg), % 0
1.8 to 2.4
Manganese (Mn), % 1.0 to 2.5
0.4 to 0.6
Molybdenum (Mo), % 4.2 to 5.2
0
Nickel (Ni), % 24 to 26
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.9
0 to 0.2
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
4.0 to 4.5
Residuals, % 0
0 to 0.15