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5042 Aluminum vs. 7022 Aluminum

Both 5042 aluminum and 7022 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is 5042 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, % 1.1 to 3.4
6.3 to 8.0
Fatigue Strength, MPa 97 to 120
140 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 200
290 to 320
Tensile Strength: Ultimate (UTS), MPa 340 to 360
490 to 540
Tensile Strength: Yield (Proof), MPa 270 to 310
390 to 460

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 570
480
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
21
Electrical Conductivity: Equal Weight (Specific), % IACS 110
65

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.8
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6 to 12
29 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
1100 to 1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 35 to 37
47 to 51
Strength to Weight: Bending, points 40 to 42
47 to 50
Thermal Diffusivity, mm2/s 53
54
Thermal Shock Resistance, points 15 to 16
21 to 23

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
87.9 to 92.4
Chromium (Cr), % 0 to 0.1
0.1 to 0.3
Copper (Cu), % 0 to 0.15
0.5 to 1.0
Iron (Fe), % 0 to 0.35
0 to 0.5
Magnesium (Mg), % 3.0 to 4.0
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 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.25
4.3 to 5.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15