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EN 1.8151 Steel vs. EN AC-71100 Aluminum

EN 1.8151 steel belongs to the iron alloys classification, while EN AC-71100 aluminum belongs to the aluminum alloys. There are 23 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 EN AC-71100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 540
110
Elastic (Young's, Tensile) Modulus, GPa 190
72
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
260

Thermal Properties

Latent Heat of Fusion, J/g 270
490
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1440
580
Melting Onset (Solidus), °C 1400
520
Specific Heat Capacity, J/kg-K 480
860
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
97

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.5
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 1.8
7.4
Embodied Energy, MJ/kg 25
140
Embodied Water, L/kg 49
1010

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 24 to 70
25
Strength to Weight: Bending, points 22 to 45
31
Thermal Shock Resistance, points 20 to 58
12

Alloy Composition


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Aluminum (Al), % 0
78.7 to 83.3
Carbon (C), % 0.4 to 0.5
0
Chromium (Cr), % 0.4 to 0.8
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 95.9 to 97.2
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0.6 to 0.9
0 to 0.15
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.3 to 1.7
7.5 to 9.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.15
Vanadium (V), % 0.1 to 0.2
0
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0
0 to 0.15