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5456 Aluminum vs. SAE-AISI P5 Steel

5456 aluminum belongs to the aluminum alloys classification, while SAE-AISI P5 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 5456 aluminum and the bottom bar is SAE-AISI P5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 320 to 340
370 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 120
45
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 97
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 9.0
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1170
56

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 33 to 35
13 to 70
Strength to Weight: Bending, points 38 to 40
15 to 45
Thermal Diffusivity, mm2/s 48
12
Thermal Shock Resistance, points 14 to 15
12 to 65

Alloy Composition

Aluminum (Al), % 92 to 94.8
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0.050 to 0.2
2.0 to 2.5
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.4
95.7 to 97.8
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.5 to 1.0
0.2 to 0.6
Nickel (Ni), % 0
0 to 0.35
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.25
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0

Comparable Variants