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2618 Aluminum vs. 7022 Aluminum

Both 2618 aluminum and 7022 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 2618 aluminum and the bottom bar is 7022 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 5.8
6.3 to 8.0
Fatigue Strength, MPa 110
140 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
26
Shear Strength, MPa 260
290 to 320
Tensile Strength: Ultimate (UTS), MPa 420
490 to 540
Tensile Strength: Yield (Proof), MPa 350
390 to 460

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
480
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 160
140
Thermal Expansion, µm/m-K 22
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 11
10
Density, g/cm3 2.9
2.9
Embodied Carbon, kg CO2/kg material 8.3
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
29 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 850
1100 to 1500
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
47
Strength to Weight: Axial, points 40
47 to 51
Strength to Weight: Bending, points 42
47 to 50
Thermal Diffusivity, mm2/s 62
54
Thermal Shock Resistance, points 19
21 to 23

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
87.9 to 92.4
Chromium (Cr), % 0
0.1 to 0.3
Copper (Cu), % 1.9 to 2.7
0.5 to 1.0
Iron (Fe), % 0.9 to 1.3
0 to 0.5
Magnesium (Mg), % 1.3 to 1.8
2.6 to 3.7
Manganese (Mn), % 0
0.1 to 0.4
Nickel (Ni), % 0.9 to 1.2
0
Silicon (Si), % 0.1 to 0.25
0 to 0.5
Titanium (Ti), % 0.040 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.1
4.3 to 5.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15