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EN 1.3551 Steel vs. A206.0 Aluminum

EN 1.3551 steel belongs to the iron alloys classification, while A206.0 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 1.3551 steel and the bottom bar is A206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 720
390 to 440

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Maximum Temperature: Mechanical, °C 530
170
Melting Completion (Liquidus), °C 1490
670
Melting Onset (Solidus), °C 1450
550
Specific Heat Capacity, J/kg-K 460
880
Thermal Conductivity, W/m-K 36
130
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
30
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
90

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
11
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 4.9
8.0
Embodied Energy, MJ/kg 71
150
Embodied Water, L/kg 82
1150

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 26
36 to 41
Strength to Weight: Bending, points 23
39 to 43
Thermal Diffusivity, mm2/s 9.8
48
Thermal Shock Resistance, points 21
17 to 19

Alloy Composition

Aluminum (Al), % 0
93.9 to 95.7
Carbon (C), % 0.77 to 0.85
0
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
4.2 to 5.0
Iron (Fe), % 88.8 to 91.1
0 to 0.1
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0.15 to 0.35
0 to 0.2
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.050
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15