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EN 1.3553 Steel vs. 2618A Aluminum

EN 1.3553 steel belongs to the iron alloys classification, while 2618A aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 1.3553 steel and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 720
440

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Maximum Temperature: Mechanical, °C 540
230
Melting Completion (Liquidus), °C 1620
670
Melting Onset (Solidus), °C 1570
560
Specific Heat Capacity, J/kg-K 440
880
Thermal Conductivity, W/m-K 24
150
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
37
Electrical Conductivity: Equal Weight (Specific), % IACS 11
110

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.4
3.0
Embodied Carbon, kg CO2/kg material 8.5
8.4
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 96
1150

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
47
Strength to Weight: Axial, points 24
41
Strength to Weight: Bending, points 21
44
Thermal Diffusivity, mm2/s 6.4
59
Thermal Shock Resistance, points 21
19

Alloy Composition

Aluminum (Al), % 0
91.5 to 95.2
Carbon (C), % 0.78 to 0.86
0
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
1.8 to 2.7
Iron (Fe), % 80.7 to 83.7
0.9 to 1.4
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 0.4
0 to 0.25
Molybdenum (Mo), % 4.7 to 5.2
0
Nickel (Ni), % 0
0.8 to 1.4
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0.15 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 6.0 to 6.7
0
Vanadium (V), % 1.7 to 2.0
0
Zinc (Zn), % 0
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15