Magnesium Elektron QE22 (UNS M18220)
Elektron QE22 is a high strength magnesium casting alloy developed by Magnesium Elektron to have good ambient and elevated temperature properties whilst retaining good foundry characteristics.
Chemical Composition | ||
---|---|---|
Element | Min | Max |
Magnesium | 93.3% | 95.6% |
Rare Earths | 2.0% | 3.0% |
Silver | 2.0% | 2.7% |
Zirconium | 0.40% | 1.0% |
The following table provides a list of magnesium Elektron QE22 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
Physical Properties | Metric |
---|---|
Density | 1820 kg/m3 |
Mechanical Properties | Metric |
Tensile Strength (Ultimate) | ≥ 240 MPa |
Tensile Strength (Yield) | ≥ 175 MPa |
Compressive Strength (Ultimate) | 310 - 385 MPa |
Compressive Strength (Yield) | 165 - 200 MPa |
Fatigue Strength # of Cycles 5.0e+7 | 60 - 70 MPa |
Shear Strength | 152 MPa |
Young’s Modulus (E) | 44.1 GPa |
Elongation at Break | ≥ 2% |
Poisson’s Ratio (ν) | 0.30 |
Thermal Properties | Metric |
Melting Point | 550 - 640 °C |
Solidus | 550 °C |
Liquidus | 640 °C |
Thermal Conductivity | 113 W/m·K |
Specific Heat Capacity (Cp) | 1000 J/kg·K |
Coefficient of Thermal Expansion (αL) | 26.7 1/°C |
Electrical Properties | Metric |
Electrical Resistivity | 6.80×10-6 Ω·cm |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of Magnesium QE22
Advantages | Disadvantages |
---|---|
High strength | High cost |
Good ductility | Corrosion prone |
Excellent machinability | Poor thermal conductivity |
Good weldability | Low melting point |
Applications of Magnesium QE22
Magnesium QE22 is a versatile material that can be used in a variety of applications, including:
- Aerospace: Magnesium QE22 is used in a variety of aerospace applications, including aircraft bodies, engine parts, and landing gear.
- Automotive: Magnesium QE22 is used in a variety of automotive applications, including engine blocks, transmission housings, and suspension components.
- Military: Magnesium QE22 is used in a variety of military applications, including weapons, armor, and vehicles.