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4115 Aluminum vs. AWS E33-31

4115 aluminum belongs to the aluminum alloys classification, while AWS E33-31 belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, 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 4115 aluminum and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 1.1 to 11
29
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 120 to 220
810

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Melting Completion (Liquidus), °C 640
1380
Melting Onset (Solidus), °C 590
1330
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 23
14

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.1
6.0
Embodied Energy, MJ/kg 150
86
Embodied Water, L/kg 1160
260

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 12 to 23
28
Strength to Weight: Bending, points 20 to 30
24
Thermal Shock Resistance, points 5.2 to 9.9
19

Alloy Composition

Aluminum (Al), % 94.6 to 97.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
31 to 35
Copper (Cu), % 0.1 to 0.5
0.4 to 0.8
Iron (Fe), % 0 to 0.7
24.7 to 34.8
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0.6 to 1.2
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
30 to 32
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 1.8 to 2.2
0 to 0.9
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0