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EN 1.8151 Steel vs. 201.0 Aluminum

EN 1.8151 steel belongs to the iron alloys classification, while 201.0 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 201.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 540
95 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
71
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
370 to 470

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1400
570
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 50
120
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
30 to 33
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
87 to 97

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
38
Density, g/cm3 7.7
3.1
Embodied Carbon, kg CO2/kg material 1.8
8.7
Embodied Energy, MJ/kg 25
160

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 24 to 70
33 to 42
Strength to Weight: Bending, points 22 to 45
37 to 44
Thermal Diffusivity, mm2/s 14
45
Thermal Shock Resistance, points 20 to 58
19 to 25

Alloy Composition


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Aluminum (Al), % 0
92.1 to 95.1
Carbon (C), % 0.4 to 0.5
0
Chromium (Cr), % 0.4 to 0.8
0
Copper (Cu), % 0
4.0 to 5.2
Iron (Fe), % 95.9 to 97.2
0 to 0.15
Magnesium (Mg), % 0
0.15 to 0.55
Manganese (Mn), % 0.6 to 0.9
0.2 to 0.5
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.3 to 1.7
0 to 0.1
Silver (Ag), % 0
0.4 to 1.0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0.15 to 0.35
Vanadium (V), % 0.1 to 0.2
0
Residuals, % 0
0 to 0.1