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SAE-AISI S1 Steel vs. 6066 Aluminum

SAE-AISI S1 steel belongs to the iron alloys classification, while 6066 aluminum belongs to the aluminum alloys. There are 23 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 SAE-AISI S1 steel and the bottom bar is 6066 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
160 to 400

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 1500
650
Melting Onset (Solidus), °C 1450
560
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 41
150
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
130

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 56
1160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 24 to 64
16 to 39
Strength to Weight: Bending, points 22 to 42
23 to 43
Thermal Diffusivity, mm2/s 11
61
Thermal Shock Resistance, points 21 to 56
6.9 to 17

Alloy Composition

Aluminum (Al), % 0
93 to 97
Carbon (C), % 0.4 to 0.55
0
Chromium (Cr), % 1.0 to 1.8
0 to 0.4
Copper (Cu), % 0 to 0.25
0.7 to 1.2
Iron (Fe), % 91.6 to 96.7
0 to 0.5
Magnesium (Mg), % 0
0.8 to 1.4
Manganese (Mn), % 0.1 to 0.4
0.6 to 1.1
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 1.2
0.9 to 1.8
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 1.5 to 3.0
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants