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AM50A Magnesium vs. 7022 Aluminum

AM50A magnesium belongs to the magnesium alloys classification, while 7022 aluminum belongs to the aluminum 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 AM50A magnesium and the bottom bar is 7022 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 11
6.3 to 8.0
Fatigue Strength, MPa 70
140 to 170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
26
Shear Strength, MPa 120
290 to 320
Tensile Strength: Ultimate (UTS), MPa 210
490 to 540
Tensile Strength: Yield (Proof), MPa 120
390 to 460

Thermal Properties

Latent Heat of Fusion, J/g 350
380
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 570
480
Specific Heat Capacity, J/kg-K 1000
870
Thermal Conductivity, W/m-K 65
140
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
21
Electrical Conductivity: Equal Weight (Specific), % IACS 88
65

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
29 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1100 to 1500
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
47
Strength to Weight: Axial, points 35
47 to 51
Strength to Weight: Bending, points 47
47 to 50
Thermal Diffusivity, mm2/s 39
54
Thermal Shock Resistance, points 13
21 to 23

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
87.9 to 92.4
Chromium (Cr), % 0
0.1 to 0.3
Copper (Cu), % 0 to 0.010
0.5 to 1.0
Iron (Fe), % 0 to 0.0040
0 to 0.5
Magnesium (Mg), % 93.7 to 95.3
2.6 to 3.7
Manganese (Mn), % 0.26 to 0.6
0.1 to 0.4
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0 to 0.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.22
4.3 to 5.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15