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EN AC-46200 Aluminum vs. SAE-AISI P20 Steel

EN AC-46200 aluminum belongs to the aluminum alloys classification, while SAE-AISI P20 steel belongs to the iron 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 EN AC-46200 aluminum and the bottom bar is SAE-AISI P20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 210
540 to 1050

Thermal Properties

Latent Heat of Fusion, J/g 510
260
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 110
45
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 88
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.8
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 1060
52

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 21
19 to 37
Strength to Weight: Bending, points 28
19 to 29
Thermal Diffusivity, mm2/s 44
12
Thermal Shock Resistance, points 9.5
18 to 35

Alloy Composition

Aluminum (Al), % 82.6 to 90.3
0
Carbon (C), % 0
0.28 to 0.4
Chromium (Cr), % 0
0.4 to 2.0
Copper (Cu), % 2.0 to 3.5
0 to 0.25
Iron (Fe), % 0 to 0.8
95.2 to 98.5
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0.050 to 0.55
0
Manganese (Mn), % 0.15 to 0.65
0.35 to 0.71
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 0 to 0.35
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 9.5
0.2 to 0.8
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.2
0
Residuals, % 0 to 0.25
0