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EN 1.8151 Steel vs. 6023 Aluminum

EN 1.8151 steel belongs to the iron alloys classification, while 6023 aluminum belongs to the aluminum 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 EN 1.8151 steel and the bottom bar is 6023 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
360

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 410
160
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 50
170
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
45
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
11
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 1.8
8.3
Embodied Energy, MJ/kg 25
150
Embodied Water, L/kg 49
1180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 24 to 70
35 to 36
Strength to Weight: Bending, points 22 to 45
40
Thermal Diffusivity, mm2/s 14
67
Thermal Shock Resistance, points 20 to 58
16

Alloy Composition


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Aluminum (Al), % 0
94 to 97.7
Bismuth (Bi), % 0
0.3 to 0.8
Carbon (C), % 0.4 to 0.5
0
Chromium (Cr), % 0.4 to 0.8
0
Copper (Cu), % 0
0.2 to 0.5
Iron (Fe), % 95.9 to 97.2
0 to 0.5
Magnesium (Mg), % 0
0.4 to 0.9
Manganese (Mn), % 0.6 to 0.9
0.2 to 0.6
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.3 to 1.7
0.6 to 1.4
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0.6 to 1.2
Vanadium (V), % 0.1 to 0.2
0
Residuals, % 0
0 to 0.15