Magnesium AZ63A-T7 (UNS M11630)
Magnesium AZ63A-T7 is a high-performance magnesium alloy valued for its excellent strength-to-weight ratio, corrosion resistance, and machinability. Commonly used in aerospace and automotive industries, it is ideal for applications where reducing weight without compromising structural integrity is essential.
Looking to buy magnesium?
Check pricing and availability through our trusted partner:
| 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-T7 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) | 115 MPa |
| Bearing Strength (Ultimate) | 515 MPa |
| Fatigue Strength # of Cycles 5.0e+8 | 115 MPa |
| Shear Strength | 140 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 6% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 64 |
| Knoop Hardness Converted from Brinell | 87 |
| Rockwell Hardness | 76 |
| Vickers Hardness Converted from Brinell | 76 |
| Machinability | 100% |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 360 °C |
| Solidus | 455 °C |
| Liquidus | 610 °C |
| Thermal Conductivity (T4 Temper) | 65.1 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 |
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-T7
| Advantages | Disadvantages |
|---|---|
| Lightweight | Corrosion susceptibility |
| Good strength-to-weight ratio | Limited temperature range |
| Excellent machinability | Limited availability |
| Good damping capacity | Higher cost |
Applications of Magnesium AZ63A-T7
Thanks to its lightweight, strength, and versatility, magnesium AZ63A-T7 is used in a wide range of industries, including:
- Automotive Industry: Used for lightweight structural components, such as engine blocks, transmission cases, intake manifolds, and instrument panel structures.
- Aerospace Industry: Utilized in applications where weight reduction is crucial, such as aircraft seat frames, interior components, brackets, and structural parts.
- Electronics and Consumer Goods: Employed in consumer electronic devices like laptops, smartphones, and tablets due to excellent machinability and damping properties.
- Sports Equipment: Used in the manufacturing of sports equipment such as golf club heads, tennis racquets, and bicycle frames.
- Medical Devices: Found in certain medical devices and equipment due to its biocompatibility and lightweight characteristics.
- Industrial Applications: Suitable for machinery parts, tools, and equipment thanks to its good strength and machinability.