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SAE-AISI 1023 Steel vs. 2095 Aluminum

SAE-AISI 1023 steel belongs to the iron alloys classification, while 2095 aluminum belongs to the aluminum alloys. There are 30 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 SAE-AISI 1023 steel and the bottom bar is 2095 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 17 to 29
8.5
Fatigue Strength, MPa 180 to 270
200
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 280 to 300
410
Tensile Strength: Ultimate (UTS), MPa 430 to 480
700
Tensile Strength: Yield (Proof), MPa 240 to 410
610

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 400
210
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
540
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 53
130
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
110

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 1.4
8.6
Embodied Energy, MJ/kg 18
160
Embodied Water, L/kg 45
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
57
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 450
2640
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 15 to 17
65
Strength to Weight: Bending, points 16 to 17
59
Thermal Diffusivity, mm2/s 14
49
Thermal Shock Resistance, points 14 to 15
31

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.9
Carbon (C), % 0.2 to 0.25
0
Copper (Cu), % 0
3.9 to 4.6
Iron (Fe), % 99.06 to 99.5
0 to 0.15
Lithium (Li), % 0
0.7 to 1.5
Magnesium (Mg), % 0
0.25 to 0.8
Manganese (Mn), % 0.3 to 0.6
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0.040 to 0.18
Residuals, % 0
0 to 0.15