Magnesium AZ63A-T6 (UNS M11630)
Magnesium AZ63A-T6 is a high-performance magnesium-aluminum-zinc alloy known for its balance of strength, ductility, and corrosion resistance. Commonly used in commercial and military structural components, it offers excellent machinability and favorable strength-to-weight ratios, making it ideal for weight-sensitive engineering applications.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | —— | Remainder |
| Aluminum | 5.3% | 6.7% |
| Copper | —— | 0.25% |
| Manganese | 0.15% | —— |
| Nickel | —— | 0.01% |
| Silicon | —— | 0.3% |
| Zinc | 2.5% | 3.5% |
The following table provides a list of magnesium AZ63A-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) | 130 MPa |
| Bearing Strength (Ultimate) | 415 MPa |
| Bearing Strength (Yield) | 360 MPa |
| Fatigue Strength # of Cycles 5.0e+8 | 76 MPa |
| Shear Strength | 145 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 5% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 73 |
| Knoop Hardness Converted from Brinell | 96 |
| Rockwell Hardness | 73 |
| Vickers Hardness Converted from Brinell | 83 |
| Machinability | 100% |
| Charpy Impact V-notch | 1.50 J |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 360 °C |
| Solidus | 455 °C |
| Liquidus | 610 °C |
| Thermal Conductivity | 61 W/m·K |
| Specific Heat Capacity (Cp) | 1050 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.1 1/°C |
| Heat of Fusion | 373 J/g |
| Electrical Properties | Metric |
| Electrical Resistivity | 1.18×10-5 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 AZ63A-T6
| Advantages | Disadvantages |
|---|---|
| Lightweight | Corrosion susceptibility |
| High strength-to-weight ratio | Limited temperature range |
| Good machinability | Flammability |
| Excellent damping properties | Higher cost |
| Recyclability | Limited availability |
Applications of Magnesium AZ63A-T6
AZ63A-T6 is widely used across industries that demand lightweight materials with reliable mechanical performance, including:
- Automotive industry: Used in automotive components to reduce weight and improve fuel efficiency.
- Aerospace industry: Finds application in aircraft components such as brackets, housings, and structural parts, contributing to weight reduction and improved performance.
- Sporting goods: Utilized in the manufacturing of sporting goods such as golf club heads, bicycle frames, and tennis rackets.
- Electronics industry: Used in electronic housings, connectors, and other components that require lightweight construction and effective electromagnetic shielding.
- Medical equipment: Employed in lightweight surgical instruments, orthopedic implants, and prosthetics.
- Consumer products: Found in consumer products such as laptop cases, mobile phone frames, and camera bodies.