Magnesium AZ92A-T6 (UNS M11920)
AZ92A-T6 is a high-strength magnesium alloy prized for its excellent ductility, castability, and corrosion resistance. It is commonly employed in sand and permanent mold casting processes and finds extensive use across aerospace, automotive, and electronics sectors due to its lightweight yet durable nature.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | —— | Remainder |
| Aluminum | 8.3% | 9.7% |
| Copper | —— | 0.25% |
| Manganese | 0.1% | —— |
| Nickel | —— | 0.01% |
| Silicon | —— | 0.3% |
| Zinc | 1.6% | 2.4% |
The following table provides a list of magnesium AZ92A-T6 properties in both SI and US customary/Imperial units.
Click on the button to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 1830 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 275 MPa |
| Tensile Strength (Yield) | 170 MPa |
| Compressive Strength (Yield) | 150 MPa |
| Bearing Strength (Ultimate) | 550 MPa |
| Bearing Strength (Yield) | 450 MPa |
| Fatigue Strength # of Cycles 1.0e+8 | 30 MPa |
| Shear Strength | 150 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 | 84 |
| Knoop Hardness Converted from Brinell | 108 |
| Rockwell Hardness | 88 |
| Vickers Hardness Converted from Brinell | 95 |
| Machinability | 100% |
| Charpy Impact V-notch | 0.680 J |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 410 °C |
| Solidus | 445 °C |
| Liquidus | 595 °C |
| Thermal Conductivity | 58.3 W/m·K |
| Specific Heat Capacity (Cp) | 1050 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.0 1/°C |
| Heat of Fusion | 373 J/g |
| Electrical Properties | Metric |
| Electrical Resistivity | 1.24×10-5 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 AZ92A-T6
| Advantages | Disadvantages |
|---|---|
| Lightweight | Flammability |
| High strength | Limited temperature resistance |
| Good castability | Susceptible to corrosion in certain environments |
| Excellent corrosion resistance | Higher cost |
| Electrical conductivity | Machining challenges |
Applications of Magnesium AZ92A-T6
AZ92A-T6, being a lightweight and high-strength alloy with good castability and corrosion resistance, finds application in various industries, including:
- Aerospace Industry: Utilized in manufacturing lightweight components for aircraft and spacecraft.
- Automotive Industry: Employed to reduce vehicle weight and enhance fuel efficiency.
- Sporting Goods: Used in producing equipment benefiting from its lightweight and mechanical properties.
- Electronic Devices: Suitable for electronic applications due to its electrical conductivity.
- Industrial Equipment: Ideal for various industrial uses owing to its strength, corrosion resistance, and castability.
- Consumer Goods: Occasionally applied in manufacturing items such as cameras, laptops, and mobile devices.