Magnesium AZ92A-T5 (UNS M11920)
AZ92A-T5 is a magnesium alloy frequently used in sand and permanent-mold castings, valued for its high tensile and yield strength. Its combination of strength and durability makes it well-suited for demanding applications across various industries requiring lightweight yet robust materials.
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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-T5 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) | 115 MPa |
| Bearing Strength (Ultimate) | 345 MPa |
| Fatigue Strength # of Cycles 5.0e+8 | 76 MPa |
| Shear Strength | 140 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 1% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 69 |
| Knoop Hardness Converted from Brinell | 92 |
| Rockwell Hardness | 80 |
| Vickers Hardness Converted from Brinell | 79 |
| Machinability | 100% |
| 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-T5
| Advantages | Disadvantages |
|---|---|
| Lightweight | Corrosion susceptibility |
| High strength-to-weight ratio | Limited temperature range |
| Good machinability | Higher cost |
| Excellent damping properties | Flammability |
| Recyclability |
Applications of Magnesium AZ92A-T5
AZ92A-T5 is widely employed across multiple industries, offering distinct benefits in areas including:
- Automotive industry: Lightweight components such as engine blocks, transmission cases, steering columns, and various structural parts.
- Aerospace industry: Aircraft parts including engine housings, gearbox casings, landing gear components, and structural elements critical for fuel efficiency and maneuverability.
- Electronic devices: Structural frames, heat sinks, and housing components for laptops, tablets, and smartphones, leveraging good machinability and electromagnetic shielding.
- Sports equipment: High-strength, lightweight applications like bicycle frames, golf club heads, and tennis racquets benefiting from superior damping properties.
- Industrial machinery: Machine frames, tooling, and equipment components where weight reduction and strength are essential.
- Consumer goods: Lightweight camera bodies, musical instruments, and camping equipment prized for machinability and ease of use.