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5088 Aluminum vs. 7022 Aluminum

Both 5088 aluminum and 7022 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 5088 aluminum and the bottom bar is 7022 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 29
6.3 to 8.0
Fatigue Strength, MPa 180
140 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
26
Shear Strength, MPa 200
290 to 320
Tensile Strength: Ultimate (UTS), MPa 310
490 to 540
Tensile Strength: Yield (Proof), MPa 150
390 to 460

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 540
480
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
21
Electrical Conductivity: Equal Weight (Specific), % IACS 98
65

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 9.0
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
29 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1100 to 1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 32
47 to 51
Strength to Weight: Bending, points 38
47 to 50
Thermal Diffusivity, mm2/s 51
54
Thermal Shock Resistance, points 14
21 to 23

Alloy Composition

Aluminum (Al), % 92.4 to 94.8
87.9 to 92.4
Chromium (Cr), % 0 to 0.15
0.1 to 0.3
Copper (Cu), % 0 to 0.25
0.5 to 1.0
Iron (Fe), % 0.1 to 0.35
0 to 0.5
Magnesium (Mg), % 4.7 to 5.5
2.6 to 3.7
Manganese (Mn), % 0.2 to 0.5
0.1 to 0.4
Silicon (Si), % 0 to 0.2
0 to 0.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0.2 to 0.4
4.3 to 5.2
Zirconium (Zr), % 0 to 0.15
0 to 0.2
Residuals, % 0
0 to 0.15