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EN 1.3558 Steel vs. EN AC-51400 Aluminum

EN 1.3558 steel belongs to the iron alloys classification, while EN AC-51400 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 1.3558 steel and the bottom bar is EN AC-51400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
71
Elastic (Young's, Tensile) Modulus, GPa 210
67
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
25
Tensile Strength: Ultimate (UTS), MPa 770
190

Thermal Properties

Latent Heat of Fusion, J/g 240
400
Maximum Temperature: Mechanical, °C 490
170
Melting Completion (Liquidus), °C 1810
640
Melting Onset (Solidus), °C 1760
600
Specific Heat Capacity, J/kg-K 410
910
Thermal Conductivity, W/m-K 20
110
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
31
Electrical Conductivity: Equal Weight (Specific), % IACS 12
110

Otherwise Unclassified Properties

Base Metal Price, % relative 45
9.5
Density, g/cm3 9.3
2.7
Embodied Carbon, kg CO2/kg material 8.4
9.1
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 90
1170

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
51
Strength to Weight: Axial, points 23
20
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 5.3
46
Thermal Shock Resistance, points 22
8.6

Alloy Composition

Aluminum (Al), % 0
90.5 to 95.5
Carbon (C), % 0.7 to 0.8
0
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
0 to 0.050
Iron (Fe), % 73.7 to 77.6
0 to 0.55
Magnesium (Mg), % 0
4.5 to 6.5
Manganese (Mn), % 0 to 0.4
0 to 0.45
Molybdenum (Mo), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15