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238.0 Aluminum vs. SAE-AISI 1022 Steel

238.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1022 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 238.0 aluminum and the bottom bar is SAE-AISI 1022 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
190
Elongation at Break, % 1.5
17 to 26
Fatigue Strength, MPa 110
190 to 300
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 210
480 to 550
Tensile Strength: Yield (Proof), MPa 170
260 to 450

Thermal Properties

Latent Heat of Fusion, J/g 430
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 510
1420
Specific Heat Capacity, J/kg-K 840
470
Thermal Conductivity, W/m-K 100
52
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 67
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 3.4
7.9
Embodied Carbon, kg CO2/kg material 7.4
1.4
Embodied Energy, MJ/kg 140
18
Embodied Water, L/kg 1040
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
190 to 530
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 42
24
Strength to Weight: Axial, points 17
17 to 19
Strength to Weight: Bending, points 23
17 to 19
Thermal Diffusivity, mm2/s 37
14
Thermal Shock Resistance, points 9.1
15 to 17

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0.18 to 0.23
Copper (Cu), % 9.5 to 10.5
0
Iron (Fe), % 1.0 to 1.5
98.7 to 99.12
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 3.6 to 4.4
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 1.0 to 1.5
0