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4032 Aluminum vs. SAE-AISI O1 Steel

4032 aluminum belongs to the aluminum alloys classification, while SAE-AISI O1 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 4032 aluminum and the bottom bar is SAE-AISI O1 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 28
72
Tensile Strength: Ultimate (UTS), MPa 390
640 to 2060

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Melting Completion (Liquidus), °C 570
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
43
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.4
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.9
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 1030
51

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 41
23 to 73
Strength to Weight: Bending, points 45
21 to 46
Thermal Diffusivity, mm2/s 59
12
Thermal Shock Resistance, points 20
21 to 68

Alloy Composition

Aluminum (Al), % 81.1 to 87.2
0
Carbon (C), % 0
0.85 to 1.0
Chromium (Cr), % 0 to 0.1
0.4 to 0.6
Copper (Cu), % 0.5 to 1.3
0 to 0.25
Iron (Fe), % 0 to 1.0
95 to 97.4
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 0
1.0 to 1.4
Nickel (Ni), % 0.5 to 1.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 11 to 13.5
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0
0 to 0.3
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0