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4115 Aluminum vs. AWS E3155

4115 aluminum belongs to the aluminum alloys classification, while AWS E3155 belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 1.1 to 11
23
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 120 to 220
770

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 590
1410
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 160
13
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
70
Density, g/cm3 2.7
8.4
Embodied Carbon, kg CO2/kg material 8.1
7.7
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1160
300

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12 to 23
26
Strength to Weight: Bending, points 20 to 30
22
Thermal Diffusivity, mm2/s 66
3.3
Thermal Shock Resistance, points 5.2 to 9.9
20

Alloy Composition

Aluminum (Al), % 94.6 to 97.4
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0.1 to 0.5
0 to 0.75
Iron (Fe), % 0 to 0.7
23.3 to 36.3
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0.6 to 1.2
1.0 to 2.5
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 1.8 to 2.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0