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EN AC-43000 Aluminum vs. SAE-AISI S2 Steel

EN AC-43000 aluminum belongs to the aluminum alloys classification, while SAE-AISI S2 steel belongs to the iron 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 EN AC-43000 aluminum and the bottom bar is SAE-AISI S2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 180 to 270
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 540
260
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 590
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
44
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.6
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
2.1
Embodied Energy, MJ/kg 150
30
Embodied Water, L/kg 1070
49

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
24
Strength to Weight: Axial, points 20 to 29
24 to 69
Strength to Weight: Bending, points 28 to 36
22 to 44
Thermal Diffusivity, mm2/s 60
12
Thermal Shock Resistance, points 8.6 to 12
23 to 68

Alloy Composition

Aluminum (Al), % 87 to 90.8
0
Carbon (C), % 0
0.4 to 0.55
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.55
96 to 98.1
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.2 to 0.45
0
Manganese (Mn), % 0 to 0.45
0.3 to 0.5
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 0 to 0.050
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 9.0 to 11
0.9 to 1.2
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0 to 0.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0