2A14 aluminum sheet is a heat-treatable aluminum–copper–magnesium–silicon alloy in the 2xxx series. It is known for its very high strength, good heat resistance, and excellent machinability. Compared with 2A12, 2A14 offers higher strength, making it suitable for heavy-duty structural components and high-temperature working environments in aerospace and industrial applications.
Specifications
| Item | Specification |
|---|---|
| Alloy / Grade | 2A14 |
| Chemical Composition (%) | Cu 3.9–4.8, Mg 0.4–0.8, Si 0.6–1.2, Mn 0.4–1.0, Fe ≤ 0.50, Zn ≤ 0.30, Ti ≤ 0.15, Al Balance |
| Series | 2000 Series (Al-Cu-Mg-Si) |
| Temper | O, T4, T6 |
| Thickness (mm) | 0.5 – 200 |
| Width (mm) | 100 – 2600 |
| Length (mm) | 2000 – 6000 |
| Surface Finish | Mill Finish, Alclad, Anodized, Painted |
| Standard | GB/T 3880, ASTM B209 (Equivalent to 2014) |
Description
Features
- Very High Mechanical Strength
Provides higher strength than 2A12 after heat treatment, suitable for heavy-load and high-stress structural applications.
- Good Heat Resistance
Maintains stable mechanical properties at elevated temperatures, making it suitable for components exposed to heat.
- Excellent Machinability
Easy to machine with good surface finish and dimensional accuracy, suitable for precision parts.
- Heat Treatable Alloy
Mechanical properties can be significantly improved through solution heat treatment and artificial aging.
- Reliable Performance in Structural Applications
Widely used in aviation and industrial fields with proven reliability under demanding service conditions.
Applications
- Aircraft structural components and fittings.
- Aerospace and aviation parts.
- High-load mechanical structures.
- Heavy-duty industrial components.
- Military and defense equipment.
