Magnesium AZ92A-F (UNS M11920)
AZ92A-F is a high-strength magnesium alloy known for its excellent ductility and castability. Commonly utilized in commercial and military sectors, it is especially suited for pressure-tight sand and permanent-mold castings, offering a reliable balance of performance and manufacturability in demanding applications.
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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-F 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) | 170 MPa |
| Tensile Strength (Yield) | 97 MPa |
| Bearing Strength (Ultimate) | 345 MPa |
| Bearing Strength (Yield) | 315 MPa |
| Fatigue Strength # of Cycles 1.0e+8 | 55 MPa |
| Shear Strength | 125 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 2% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 65 |
| Knoop Hardness Converted from Brinell | 88 |
| Rockwell Hardness | 76 |
| Vickers Hardness Converted from Brinell | 75 |
| Machinability | 100% |
| Charpy Impact V-notch | 0.700 J |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 410 °C |
| Solidus | 445 °C |
| Liquidus | 595 °C |
| Thermal Conductivity | 52.2 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 | 1.40×10-5 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-F
| Advantages | Disadvantages |
|---|---|
| High strength | Low melting point |
| Good ductility and toughness | Corrosion in sea water |
| Low density | High cost |
| Corrosion resistance in many environments | Difficult to machine |
| Heat treatable | Poor weldability |
Applications of Magnesium AZ92A-F
AZ92A-F is a versatile and reliable alloy that is used in a wide variety of applications, including:
- Automotive: Used in various components such as engine blocks, cylinder heads, and pistons.
- Aerospace: Incorporated in aircraft structures, landing gear, and other parts.
- Marine: Applied in boat hulls, propellers, and additional marine components.
- Construction: Utilized in structural beams, columns, and related elements.
- Electrical: Employed in electrical connectors, housings, and other parts.
- Medical: Used for implants, surgical instruments, and various medical components.