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7022 Aluminum vs. ZE63A Magnesium

7022 aluminum belongs to the aluminum alloys classification, while ZE63A 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 aluminum and the bottom bar is ZE63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 6.3 to 8.0
7.7
Fatigue Strength, MPa 140 to 170
120
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 290 to 320
170
Tensile Strength: Ultimate (UTS), MPa 490 to 540
300
Tensile Strength: Yield (Proof), MPa 390 to 460
190

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 640
510
Melting Onset (Solidus), °C 480
390
Specific Heat Capacity, J/kg-K 870
950
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
31
Electrical Conductivity: Equal Weight (Specific), % IACS 65
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
22
Density, g/cm3 2.9
2.0
Embodied Carbon, kg CO2/kg material 8.5
24
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 1130
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
20
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
400
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 47
58
Strength to Weight: Axial, points 47 to 51
40
Strength to Weight: Bending, points 47 to 50
48
Thermal Diffusivity, mm2/s 54
57
Thermal Shock Resistance, points 21 to 23
17

Alloy Composition

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 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 2.6 to 3.7
89.6 to 92
Manganese (Mn), % 0.1 to 0.4
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.5
0
Titanium (Ti), % 0 to 0.2
0
Unspecified Rare Earths, % 0
2.1 to 3.0
Zinc (Zn), % 4.3 to 5.2
5.5 to 6.0
Zirconium (Zr), % 0 to 0.2
0.4 to 1.0
Residuals, % 0
0 to 0.3