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EN AC-44000 Aluminum vs. SAE-AISI S6 Steel

EN AC-44000 aluminum belongs to the aluminum alloys classification, while SAE-AISI S6 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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-44000 aluminum and the bottom bar is SAE-AISI S6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 180
670 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 560
290
Melting Completion (Liquidus), °C 590
1430
Melting Onset (Solidus), °C 590
1390
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 140
41
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.2
Density, g/cm3 2.5
7.7
Embodied Carbon, kg CO2/kg material 7.8
2.3
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 1070
56

Common Calculations

Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
25
Strength to Weight: Axial, points 20
24 to 70
Strength to Weight: Bending, points 28
22 to 45
Thermal Diffusivity, mm2/s 61
11
Thermal Shock Resistance, points 8.4
22 to 64

Alloy Composition


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Aluminum (Al), % 87.1 to 90
0
Carbon (C), % 0
0.4 to 0.5
Chromium (Cr), % 0
1.2 to 1.5
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.19
92.8 to 94.7
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
1.2 to 1.5
Molybdenum (Mo), % 0
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10 to 11.8
2.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0.2 to 0.4
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0