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EN AC-44300 Aluminum vs. SAE-AISI L3 Steel

EN AC-44300 aluminum belongs to the aluminum alloys classification, while SAE-AISI L3 steel belongs to the iron alloys. There are 23 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 EN AC-44300 aluminum and the bottom bar is SAE-AISI L3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 270
600 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Melting Completion (Liquidus), °C 590
1450
Melting Onset (Solidus), °C 580
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
43
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.5
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.9
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 1050
53

Common Calculations

Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 29
21 to 80
Strength to Weight: Bending, points 36
20 to 49
Thermal Diffusivity, mm2/s 58
12
Thermal Shock Resistance, points 13
18 to 67

Alloy Composition

Aluminum (Al), % 84.3 to 89.5
0
Carbon (C), % 0
1.0 to 1.1
Chromium (Cr), % 0
1.3 to 1.7
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 1.0
95.5 to 97.3
Manganese (Mn), % 0 to 0.55
0.25 to 0.8
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 13.5
0.1 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.25
0