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EN 1.5538 Steel vs. 3103 Aluminum

EN 1.5538 steel belongs to the iron alloys classification, while 3103 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 1.5538 steel and the bottom bar is 3103 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
27 to 62
Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 530 to 1810
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
190
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 51
160
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
42
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 48
1180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 19 to 64
10 to 22
Strength to Weight: Bending, points 19 to 42
18 to 30
Thermal Diffusivity, mm2/s 14
64
Thermal Shock Resistance, points 16 to 53
4.6 to 9.9

Alloy Composition

Aluminum (Al), % 0
96.3 to 99.1
Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.35 to 0.4
0
Chromium (Cr), % 0 to 0.3
0 to 0.1
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 97.2 to 98.5
0 to 0.7
Magnesium (Mg), % 0
0 to 0.3
Manganese (Mn), % 1.2 to 1.5
0.9 to 1.5
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.15