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SAE-AISI 1023 Steel vs. 8176 Aluminum

SAE-AISI 1023 steel belongs to the iron alloys classification, while 8176 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 8176 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 17 to 29
15
Fatigue Strength, MPa 180 to 270
59
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 280 to 300
70
Tensile Strength: Ultimate (UTS), MPa 430 to 480
160
Tensile Strength: Yield (Proof), MPa 240 to 410
95

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
650
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 53
230
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
61
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
200

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 45
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
21
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 450
66
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 15 to 17
16
Strength to Weight: Bending, points 16 to 17
24
Thermal Diffusivity, mm2/s 14
93
Thermal Shock Resistance, points 14 to 15
7.0

Alloy Composition

Aluminum (Al), % 0
98.6 to 99.6
Carbon (C), % 0.2 to 0.25
0
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 99.06 to 99.5
0.4 to 1.0
Manganese (Mn), % 0.3 to 0.6
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0.030 to 0.15
Sulfur (S), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15