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EN 1.3551 Steel vs. A384.0 Aluminum

EN 1.3551 steel belongs to the iron alloys classification, while A384.0 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 1.3551 steel and the bottom bar is A384.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
74
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
28
Tensile Strength: Ultimate (UTS), MPa 720
330

Thermal Properties

Latent Heat of Fusion, J/g 260
550
Maximum Temperature: Mechanical, °C 530
170
Melting Completion (Liquidus), °C 1490
610
Melting Onset (Solidus), °C 1450
510
Specific Heat Capacity, J/kg-K 460
880
Thermal Conductivity, W/m-K 36
96
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
23
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
73

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
11
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 4.9
7.5
Embodied Energy, MJ/kg 71
140
Embodied Water, L/kg 82
1010

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 26
32
Strength to Weight: Bending, points 23
38
Thermal Diffusivity, mm2/s 9.8
39
Thermal Shock Resistance, points 21
15

Alloy Composition

Aluminum (Al), % 0
79.3 to 86.5
Carbon (C), % 0.77 to 0.85
0
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
3.0 to 4.5
Iron (Fe), % 88.8 to 91.1
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.15 to 0.35
0 to 0.5
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
10.5 to 12
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.35
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5