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EN 1.8151 Steel vs. 4006 Aluminum

EN 1.8151 steel belongs to the iron alloys classification, while 4006 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 4006 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 540
28 to 45
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
110 to 160

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 410
160
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 50
220
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
56
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
180

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.0
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 1.8
8.1
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
50
Strength to Weight: Axial, points 24 to 70
11 to 16
Strength to Weight: Bending, points 22 to 45
19 to 24
Thermal Diffusivity, mm2/s 14
89
Thermal Shock Resistance, points 20 to 58
4.9 to 7.0

Alloy Composition


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Aluminum (Al), % 0
97.4 to 98.7
Carbon (C), % 0.4 to 0.5
0
Chromium (Cr), % 0.4 to 0.8
0 to 0.2
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 95.9 to 97.2
0.5 to 0.8
Magnesium (Mg), % 0
0 to 0.010
Manganese (Mn), % 0.6 to 0.9
0 to 0.050
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.3 to 1.7
0.8 to 1.2
Sulfur (S), % 0 to 0.025
0
Vanadium (V), % 0.1 to 0.2
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15

Comparable Variants