Magnesium AZ63A-T4 (UNS M11630)
AZ63A-T4 is a magnesium alloy that is commonly used in commercial and military structures that require medium strength and good ductility. It is a sand cast alloy that exhibits good strength at room temperature.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | Remainder | |
| Aluminum | 5.3% | 6.7% |
| Copper | 0.25% | |
| Manganese | 0.15% | |
| Nickel | 0.01% | |
| Silicon | 0.30% | |
| Zinc | 2.5% | 3.5% |
The following table provides a list of magnesium AZ63A-T4 properties in both SI and US customary/Imperial units.
Click on the icon 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) | 97 MPa |
| Bearing Strength (Ultimate) | 415 MPa |
| Fatigue Strength # of Cycles 5.0e+8 | 83 MPa |
| Shear Strength | 125 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 12% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 55 |
| Knoop Hardness Converted from Brinell | 70 |
| Rockwell Hardness | 66 |
| Machinability | 100% |
| Charpy Impact V-notch | 3.40 J |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 360 °C |
| Solidus | 455 °C |
| Liquidus | 610 °C |
| Thermal Conductivity | 52.2 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 | 1.40×10-5 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 AZ63A-T4
| Advantages | Disadvantages |
|---|---|
| Lightweight | Corrosion susceptibility. |
| High strength-to-weight ratio. | Limited temperature range. |
| Good machinability. | Higher cost. |
| Good damping properties. | Limited availability. |
| Excellent castability. | Flammability concerns. |
Applications of Magnesium AZ63A-T4
Magnesium AZ63A-T4 has several applications across various industries due to its unique properties. Here are some common applications:
- Automotive Industry: Lightweight components such as engine blocks, transmission cases, intake manifolds, and steering components.
- Aerospace Industry: Aircraft components like seat frames, brackets, instrument panels, and interior parts.
- Electronics and Consumer Goods: Laptops, tablets, cameras, and portable electronic devices.
- Sports Equipment: Golf club heads, tennis racquets, and bicycle frames.
- Industrial Machinery: Machine frames, tooling, and equipment housings.
- Medical Devices: Surgical instruments, orthopedic implants, and lightweight braces.
- Defense and Military Applications: Weapon systems, lightweight armor, and military vehicles.