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SAE-AISI S1 Steel vs. 6008 Aluminum

SAE-AISI S1 steel belongs to the iron alloys classification, while 6008 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 6008 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
200 to 290

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 1500
640
Melting Onset (Solidus), °C 1450
620
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 41
190
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
49
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
160

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.5
Embodied Energy, MJ/kg 37
160
Embodied Water, L/kg 56
1180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 24 to 64
21 to 29
Strength to Weight: Bending, points 22 to 42
28 to 35
Thermal Diffusivity, mm2/s 11
77
Thermal Shock Resistance, points 21 to 56
9.0 to 13

Alloy Composition

Aluminum (Al), % 0
96.5 to 99.1
Carbon (C), % 0.4 to 0.55
0
Chromium (Cr), % 1.0 to 1.8
0 to 0.3
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 91.6 to 96.7
0 to 0.35
Magnesium (Mg), % 0
0.4 to 0.7
Manganese (Mn), % 0.1 to 0.4
0 to 0.3
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
0.5 to 0.9
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 1.5 to 3.0
0
Vanadium (V), % 0.15 to 0.3
0.050 to 0.2
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15