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206.0 Aluminum vs. EN 1.1221 Steel

206.0 aluminum belongs to the aluminum alloys classification, while EN 1.1221 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 206.0 aluminum and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 8.4 to 12
10 to 21
Fatigue Strength, MPa 88 to 210
240 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Shear Strength, MPa 260
450 to 520
Tensile Strength: Ultimate (UTS), MPa 330 to 440
730 to 870
Tensile Strength: Yield (Proof), MPa 190 to 350
390 to 550

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 120
48
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.1
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.5
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 49
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 840
410 to 800
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 30 to 40
26 to 31
Strength to Weight: Bending, points 35 to 42
23 to 26
Thermal Diffusivity, mm2/s 46
13
Thermal Shock Resistance, points 17 to 23
23 to 28

Alloy Composition

Aluminum (Al), % 93.3 to 95.3
0
Carbon (C), % 0
0.57 to 0.65
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 4.2 to 5.0
0
Iron (Fe), % 0 to 0.15
97.1 to 98.8
Magnesium (Mg), % 0.15 to 0.35
0
Manganese (Mn), % 0.2 to 0.5
0.6 to 0.9
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.050
0 to 0.4
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0