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7022 Aluminum vs. AM60B Magnesium

7022 aluminum belongs to the aluminum alloys classification, while AM60B magnesium belongs to the magnesium alloys. 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 7022 aluminum and the bottom bar is AM60B magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 6.3 to 8.0
11
Fatigue Strength, MPa 140 to 170
96
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 290 to 320
140
Tensile Strength: Ultimate (UTS), MPa 490 to 540
230
Tensile Strength: Yield (Proof), MPa 390 to 460
130

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 640
620
Melting Onset (Solidus), °C 480
540
Specific Heat Capacity, J/kg-K 870
1000
Thermal Conductivity, W/m-K 140
61
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
13
Electrical Conductivity: Equal Weight (Specific), % IACS 65
72

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 8.5
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1130
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
71
Strength to Weight: Axial, points 47 to 51
38
Strength to Weight: Bending, points 47 to 50
50
Thermal Diffusivity, mm2/s 54
37
Thermal Shock Resistance, points 21 to 23
14

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
5.5 to 6.5
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
0 to 0.010
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 2.6 to 3.7
92.6 to 94.3
Manganese (Mn), % 0.1 to 0.4
0.24 to 0.6
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.5
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 4.3 to 5.2
0 to 0.22
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0