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SAE-AISI S2 Steel vs. 333.0 Aluminum

SAE-AISI S2 steel belongs to the iron alloys classification, while 333.0 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 S2 steel and the bottom bar is 333.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
28
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
230 to 280

Thermal Properties

Latent Heat of Fusion, J/g 260
520
Melting Completion (Liquidus), °C 1450
590
Melting Onset (Solidus), °C 1410
530
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 44
100 to 140
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
26 to 35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
83 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 2.1
7.6
Embodied Energy, MJ/kg 30
140
Embodied Water, L/kg 49
1040

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 24 to 69
22 to 27
Strength to Weight: Bending, points 22 to 44
29 to 34
Thermal Diffusivity, mm2/s 12
42 to 57
Thermal Shock Resistance, points 23 to 68
11 to 13

Alloy Composition

Aluminum (Al), % 0
81.8 to 89
Carbon (C), % 0.4 to 0.55
0
Copper (Cu), % 0 to 0.25
3.0 to 4.0
Iron (Fe), % 96 to 98.1
0 to 1.0
Magnesium (Mg), % 0
0.050 to 0.5
Manganese (Mn), % 0.3 to 0.5
0 to 0.5
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.9 to 1.2
8.0 to 10
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0 to 0.5
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5