Magnesium QE22A-T6 (UNS M18220)
QE22A-T6 is a high-strength, heat-treated magnesium alloy that is commonly used in sand and permanent mold castings. It has excellent tensile, fatigue, and creep properties at both room and elevated temperatures.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | Remainder | |
| Copper | 0.10% | |
| Neodymium | 1.7% | 2.5% |
| Nickel | 0.01% | |
| Silver | 2.0% | 3.0% |
| Zirconium | 0.40% | 1.0% |
The following table provides a list of magnesium QE22A-T6 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) | 260 MPa |
| Tensile Strength (Yield) | 195 MPa |
| Compressive Strength (Ultimate) | 193 MPa |
| Compressive Strength (Yield) | 195 MPa |
| Shear Strength | 160 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 3% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 80 |
| Knoop Hardness Converted from Brinell | 103 |
| Vickers Hardness Converted from Brinell | 90 |
| Machinability | 100% |
| Charpy Impact V-notch | 2.00 J |
| Thermal Properties | Metric |
| Melting Point | 550 - 645 °C |
| Solidus | 550 °C |
| Liquidus | 645 °C |
| Thermal Conductivity | 113 W/m·K |
| Specific Heat Capacity (Cp) | 1000 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.7 1/°C |
| Heat of Fusion | 373 J/g |
| Electrical Properties | Metric |
| Electrical Resistivity | 6.85×10-6 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 QE22A-T6
| Advantages | Disadvantages |
|---|---|
| Lightweight | Corrosion-prone |
| Strong | High cost |
| Durable | Difficult to machine |
| Versatile | Low melting point |
| High-performance | Limited availability |
Applications of Magnesium QE22A-T6
Magnesium QE22A-T6 is a versatile and high-performance alloy that is well-suited for a variety of applications, including:
- Aerospace industry: Magnesium QE22A-T6 is used to make aircraft landing gear, engine mounts, and structural components.
- Automotive industry: Magnesium QE22A-T6 is used to make engine blocks, pistons, and brake rotors.
- Marine industry: Magnesium QE22A-T6 is used to make hulls, deck structures, and propellers.
- Industrial sector: Magnesium QE22A-T6 is used to make machinery, tooling, and fixtures.
- Medical industry: Magnesium QE22A-T6 is used to make implants, prosthetics, and surgical instruments.
- Consumer goods industry: Magnesium QE22A-T6 is used to make sporting goods, electronics, and furniture.