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7022 Aluminum vs. 2117 Aluminum

Both 7022 aluminum and 2117 aluminum are aluminum alloys. They have a moderately high 93% 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 7022 aluminum and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
71
Elongation at Break, % 6.3 to 8.0
26
Fatigue Strength, MPa 140 to 170
95
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 290 to 320
200
Tensile Strength: Ultimate (UTS), MPa 490 to 540
300
Tensile Strength: Yield (Proof), MPa 390 to 460
170

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 480
550
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
40
Electrical Conductivity: Equal Weight (Specific), % IACS 65
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 2.9
3.0
Embodied Carbon, kg CO2/kg material 8.5
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
64
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
47
Strength to Weight: Axial, points 47 to 51
28
Strength to Weight: Bending, points 47 to 50
33
Thermal Diffusivity, mm2/s 54
59
Thermal Shock Resistance, points 21 to 23
12

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
91 to 97.6
Chromium (Cr), % 0.1 to 0.3
0 to 0.1
Copper (Cu), % 0.5 to 1.0
2.2 to 4.5
Iron (Fe), % 0 to 0.5
0 to 0.7
Magnesium (Mg), % 2.6 to 3.7
0.2 to 1.0
Manganese (Mn), % 0.1 to 0.4
0.4 to 1.0
Silicon (Si), % 0 to 0.5
0.2 to 0.8
Titanium (Ti), % 0 to 0.2
0 to 0.25
Zinc (Zn), % 4.3 to 5.2
0 to 0.25
Zirconium (Zr), % 0 to 0.2
0 to 0.25
Residuals, % 0
0 to 0.15