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6066 Aluminum vs. EN 1.6526 Steel

6066 aluminum belongs to the aluminum alloys classification, while EN 1.6526 steel belongs to the iron alloys. There are 24 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 6066 aluminum and the bottom bar is EN 1.6526 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 160 to 400
520 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 150
39
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.6
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1160
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 16 to 39
18 to 52
Strength to Weight: Bending, points 23 to 43
18 to 36
Thermal Diffusivity, mm2/s 61
10
Thermal Shock Resistance, points 6.9 to 17
15 to 43

Alloy Composition

Aluminum (Al), % 93 to 97
0
Carbon (C), % 0
0.17 to 0.23
Chromium (Cr), % 0 to 0.4
0.35 to 0.7
Copper (Cu), % 0.7 to 1.2
0 to 0.25
Iron (Fe), % 0 to 0.5
96.6 to 98.3
Magnesium (Mg), % 0.8 to 1.4
0
Manganese (Mn), % 0.6 to 1.1
0.65 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.9 to 1.8
0 to 0.3
Sulfur (S), % 0
0.020 to 0.040
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0