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SAE-AISI S2 Steel vs. EN AC-47000 Aluminum

SAE-AISI S2 steel belongs to the iron alloys classification, while EN AC-47000 aluminum belongs to the aluminum alloys. There are 23 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 SAE-AISI S2 steel and the bottom bar is EN AC-47000 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
27
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
180

Thermal Properties

Latent Heat of Fusion, J/g 260
570
Melting Completion (Liquidus), °C 1450
590
Melting Onset (Solidus), °C 1410
570
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 44
130
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
33
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 2.1
7.7
Embodied Energy, MJ/kg 30
140
Embodied Water, L/kg 49
1040

Common Calculations

Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 24 to 69
19
Strength to Weight: Bending, points 22 to 44
27
Thermal Diffusivity, mm2/s 12
55
Thermal Shock Resistance, points 23 to 68
8.3

Alloy Composition

Aluminum (Al), % 0
82.1 to 89.5
Carbon (C), % 0.4 to 0.55
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
0 to 1.0
Iron (Fe), % 96 to 98.1
0 to 0.8
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 0
0 to 0.35
Manganese (Mn), % 0.3 to 0.5
0.050 to 0.55
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.9 to 1.2
10.5 to 13.5
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0 to 0.5
0
Zinc (Zn), % 0
0 to 0.55
Residuals, % 0
0 to 0.25