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SAE-AISI 1023 Steel vs. 2117 Aluminum

SAE-AISI 1023 steel belongs to the iron alloys classification, while 2117 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 SAE-AISI 1023 steel and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 140
70
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 17 to 29
26
Fatigue Strength, MPa 180 to 270
95
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 280 to 300
200
Tensile Strength: Ultimate (UTS), MPa 430 to 480
300
Tensile Strength: Yield (Proof), MPa 240 to 410
170

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
220
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 53
150
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
10
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 45
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
64
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 450
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 15 to 17
28
Strength to Weight: Bending, points 16 to 17
33
Thermal Diffusivity, mm2/s 14
59
Thermal Shock Resistance, points 14 to 15
12

Alloy Composition

Aluminum (Al), % 0
91 to 97.6
Carbon (C), % 0.2 to 0.25
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
2.2 to 4.5
Iron (Fe), % 99.06 to 99.5
0 to 0.7
Magnesium (Mg), % 0
0.2 to 1.0
Manganese (Mn), % 0.3 to 0.6
0.4 to 1.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0.2 to 0.8
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15