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A380.0 Aluminum vs. SAE-AISI L2 Steel

A380.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI L2 steel belongs to the iron alloys. There are 23 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 A380.0 aluminum and the bottom bar is SAE-AISI L2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 290
590 to 1960

Thermal Properties

Latent Heat of Fusion, J/g 510
250
Melting Completion (Liquidus), °C 590
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 96
44
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 78
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.4
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
1.9
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 1040
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 28
21 to 70
Strength to Weight: Bending, points 34
20 to 45
Thermal Diffusivity, mm2/s 38
12
Thermal Shock Resistance, points 13
19 to 65

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0.45 to 1.0
Chromium (Cr), % 0
0.7 to 1.2
Copper (Cu), % 3.0 to 4.0
0 to 0.25
Iron (Fe), % 0 to 1.3
95.5 to 98.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.1 to 0.9
Molybdenum (Mo), % 0
0 to 0.25
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 9.5
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0