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EN AC-71100 Aluminum vs. AWS E33-31

EN AC-71100 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 (9, 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 EN AC-71100 aluminum and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
210
Elongation at Break, % 1.1
29
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 27
81
Tensile Strength: Ultimate (UTS), MPa 260
810

Thermal Properties

Latent Heat of Fusion, J/g 490
320
Melting Completion (Liquidus), °C 580
1380
Melting Onset (Solidus), °C 520
1330
Specific Heat Capacity, J/kg-K 860
480
Thermal Expansion, µm/m-K 22
14

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.4
6.0
Embodied Energy, MJ/kg 140
86
Embodied Water, L/kg 1010
260

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 25
28
Strength to Weight: Bending, points 31
24
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
31 to 35
Copper (Cu), % 0 to 0.1
0.4 to 0.8
Iron (Fe), % 0 to 0.3
24.7 to 34.8
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
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), % 7.5 to 9.5
0 to 0.9
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0