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EN 1.3558 Steel vs. 5040 Aluminum

EN 1.3558 steel belongs to the iron alloys classification, while 5040 aluminum belongs to the aluminum alloys. There are 25 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 1.3558 steel and the bottom bar is 5040 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
66 to 74
Elastic (Young's, Tensile) Modulus, GPa 210
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 770
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 240
400
Maximum Temperature: Mechanical, °C 490
190
Melting Completion (Liquidus), °C 1810
650
Melting Onset (Solidus), °C 1760
600
Specific Heat Capacity, J/kg-K 410
900
Thermal Conductivity, W/m-K 20
160
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
41
Electrical Conductivity: Equal Weight (Specific), % IACS 12
130

Otherwise Unclassified Properties

Base Metal Price, % relative 45
9.5
Density, g/cm3 9.3
2.8
Embodied Carbon, kg CO2/kg material 8.4
8.3
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 90
1180

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
50
Strength to Weight: Axial, points 23
24 to 26
Strength to Weight: Bending, points 20
31 to 32
Thermal Diffusivity, mm2/s 5.3
64
Thermal Shock Resistance, points 22
10 to 11

Alloy Composition

Aluminum (Al), % 0
95.2 to 98
Carbon (C), % 0.7 to 0.8
0
Chromium (Cr), % 3.9 to 4.3
0.1 to 0.3
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 73.7 to 77.6
0 to 0.7
Magnesium (Mg), % 0
1.0 to 1.5
Manganese (Mn), % 0 to 0.4
0.9 to 1.4
Molybdenum (Mo), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.3
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15