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7022 Aluminum vs. 7475 Aluminum

Both 7022 aluminum and 7475 aluminum are aluminum alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is 7022 aluminum and the bottom bar is 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 6.3 to 8.0
10 to 12
Fatigue Strength, MPa 140 to 170
190 to 210
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 290 to 320
320 to 350
Tensile Strength: Ultimate (UTS), MPa 490 to 540
530 to 590
Tensile Strength: Yield (Proof), MPa 390 to 460
440 to 520

Thermal Properties

Latent Heat of Fusion, J/g 380
380
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 480
480
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 140
140 to 160
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
33 to 42
Electrical Conductivity: Equal Weight (Specific), % IACS 65
98 to 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
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
53 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
1390 to 1920
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
46
Strength to Weight: Axial, points 47 to 51
49 to 55
Strength to Weight: Bending, points 47 to 50
48 to 52
Thermal Diffusivity, mm2/s 54
53 to 63
Thermal Shock Resistance, points 21 to 23
23 to 26

Alloy Composition


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Aluminum (Al), % 87.9 to 92.4
88.6 to 91.6
Chromium (Cr), % 0.1 to 0.3
0.18 to 0.25
Copper (Cu), % 0.5 to 1.0
1.2 to 1.9
Iron (Fe), % 0 to 0.5
0 to 0.12
Magnesium (Mg), % 2.6 to 3.7
1.9 to 2.6
Manganese (Mn), % 0.1 to 0.4
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 0.1
Titanium (Ti), % 0 to 0.2
0 to 0.060
Zinc (Zn), % 4.3 to 5.2
5.1 to 6.2
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants