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308.0 Aluminum vs. 7022 Aluminum

Both 308.0 aluminum and 7022 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 308.0 aluminum and the bottom bar is 7022 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
70
Elongation at Break, % 2.0
6.3 to 8.0
Fatigue Strength, MPa 89
140 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
26
Shear Strength, MPa 150
290 to 320
Tensile Strength: Ultimate (UTS), MPa 190
490 to 540
Tensile Strength: Yield (Proof), MPa 110
390 to 460

Thermal Properties

Latent Heat of Fusion, J/g 470
380
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 540
480
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 140
140
Thermal Expansion, µm/m-K 20
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
21
Electrical Conductivity: Equal Weight (Specific), % IACS 110
65

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 2.9
2.9
Embodied Carbon, kg CO2/kg material 7.7
8.5
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1080
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3
29 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 83
1100 to 1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
47
Strength to Weight: Axial, points 18
47 to 51
Strength to Weight: Bending, points 25
47 to 50
Thermal Diffusivity, mm2/s 55
54
Thermal Shock Resistance, points 9.2
21 to 23

Alloy Composition

Aluminum (Al), % 85.7 to 91
87.9 to 92.4
Chromium (Cr), % 0
0.1 to 0.3
Copper (Cu), % 4.0 to 5.0
0.5 to 1.0
Iron (Fe), % 0 to 1.0
0 to 0.5
Magnesium (Mg), % 0 to 0.1
2.6 to 3.7
Manganese (Mn), % 0 to 0.5
0.1 to 0.4
Silicon (Si), % 5.0 to 6.0
0 to 0.5
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 0 to 1.0
4.3 to 5.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15