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8021 Aluminum vs. EN 1.5526 Steel

8021 aluminum belongs to the aluminum alloys classification, while EN 1.5526 steel belongs to the iron alloys. There are 24 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 8021 aluminum and the bottom bar is EN 1.5526 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 160
490 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 220
48
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 180
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
1.9
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1180
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 16
17 to 59
Strength to Weight: Bending, points 23
18 to 40
Thermal Diffusivity, mm2/s 88
13
Thermal Shock Resistance, points 7.0
14 to 49

Alloy Composition

Aluminum (Al), % 98 to 98.8
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.27 to 0.32
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 1.2 to 1.7
97.7 to 98.9
Manganese (Mn), % 0
0.8 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.15
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Residuals, % 0 to 0.15
0