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392.0 Aluminum vs. SAE-AISI 1040 Steel

392.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1040 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 392.0 aluminum and the bottom bar is SAE-AISI 1040 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
190
Elongation at Break, % 0.86
13 to 20
Fatigue Strength, MPa 190
220 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 290
570 to 640
Tensile Strength: Yield (Proof), MPa 270
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 670
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 670
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
51
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 90
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.5
1.4
Embodied Energy, MJ/kg 140
18
Embodied Water, L/kg 950
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
79 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 490
270 to 760
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 56
24
Strength to Weight: Axial, points 32
20 to 23
Strength to Weight: Bending, points 39
19 to 21
Thermal Diffusivity, mm2/s 60
14
Thermal Shock Resistance, points 15
18 to 20

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0
Carbon (C), % 0
0.37 to 0.44
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 0 to 1.5
98.6 to 99.03
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.6
0.6 to 0.9
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 18 to 20
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0