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7022-T6 Aluminum vs. WE43A-T6 Magnesium

7022-T6 aluminum belongs to the aluminum alloys classification, while WE43A-T6 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 7022-T6 aluminum and the bottom bar is WE43A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 7.8
5.4
Fatigue Strength, MPa 160
85
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 290
160
Tensile Strength: Ultimate (UTS), MPa 500
250
Tensile Strength: Yield (Proof), MPa 420
170

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 480
570
Specific Heat Capacity, J/kg-K 870
960
Thermal Conductivity, W/m-K 140
51
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
12
Electrical Conductivity: Equal Weight (Specific), % IACS 65
55

Otherwise Unclassified Properties

Base Metal Price, % relative 10
34
Density, g/cm3 2.9
1.9
Embodied Carbon, kg CO2/kg material 8.5
28
Embodied Energy, MJ/kg 150
250
Embodied Water, L/kg 1130
910

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
12
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
310
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
61
Strength to Weight: Axial, points 48
36
Strength to Weight: Bending, points 48
46
Thermal Diffusivity, mm2/s 54
28
Thermal Shock Resistance, points 22
15

Alloy Composition


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Aluminum (Al), % 87.9 to 92.4
0
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
0 to 0.030
Iron (Fe), % 0 to 0.5
0 to 0.010
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 2.6 to 3.7
89.5 to 93.5
Manganese (Mn), % 0.1 to 0.4
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.5
0 to 0.010
Titanium (Ti), % 0 to 0.2
0
Unspecified Rare Earths, % 0
2.4 to 4.4
Yttrium (Y), % 0
3.7 to 4.3
Zinc (Zn), % 4.3 to 5.2
0 to 0.2
Zirconium (Zr), % 0 to 0.2
0.4 to 1.0
Residuals, % 0 to 0.15
0 to 0.3