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5021 Aluminum vs. 2024 Aluminum

Both 5021 aluminum and 2024 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 5021 aluminum and the bottom bar is 2024 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 1.1 to 3.4
4.0 to 16
Fatigue Strength, MPa 85 to 110
90 to 180
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 170
130 to 320
Tensile Strength: Ultimate (UTS), MPa 300 to 310
200 to 540
Tensile Strength: Yield (Proof), MPa 240 to 270
100 to 490

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
500
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 140
120
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
30
Electrical Conductivity: Equal Weight (Specific), % IACS 120
90

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.6
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
20 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
70 to 1680
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 30 to 32
18 to 50
Strength to Weight: Bending, points 37
25 to 49
Thermal Diffusivity, mm2/s 57
46
Thermal Shock Resistance, points 13 to 14
8.6 to 24

Alloy Composition

Aluminum (Al), % 95.2 to 97.7
90.7 to 94.7
Chromium (Cr), % 0 to 0.15
0 to 0.1
Copper (Cu), % 0 to 0.15
3.8 to 4.9
Iron (Fe), % 0 to 0.5
0 to 0.5
Magnesium (Mg), % 2.2 to 2.8
1.2 to 1.8
Manganese (Mn), % 0.1 to 0.5
0.3 to 0.9
Silicon (Si), % 0 to 0.4
0 to 0.5
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.15
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15