7050 aluminum wire is a high-strength, heat-treatable aluminum alloy from the Al–Zn–Mg–Cu series (7xxx series). It is renowned for its exceptional tensile and yield strength, good fatigue resistance, and excellent corrosion resistance after proper heat treatment. Compared with 2xxx and 6xxx series alloys, 7050 offers one of the highest strength-to-weight ratios, making it ideal for aerospace, military, and high-performance structural applications.
Description
Features
- Ultra-High Mechanical Strength
Provides superior tensile and yield strength, suitable for critical load-bearing applications.
- Excellent Fatigue Resistance
Performs reliably under repeated stress and vibration, ideal for aerospace and automotive components.
- Heat-Treatable Alloy
Mechanical properties can be significantly enhanced through T6 or T7451 heat treatment.
- Good Corrosion Resistance
After heat treatment, offers excellent resistance to atmospheric corrosion and stress corrosion cracking.
- Machinability and Fabrication
Suitable for precision machining, forming, and structural assembly applications.
Specifications
| Item | Description |
|---|---|
| Alloy | 7050 |
| Aluminum Content / Chemical Composition | Al: Balance, Zn: 5.7–6.7%, Mg: 2.2–2.6%, Cu: 2.0–2.6%, Cr: 0.18–0.35%, Si: ≤ 0.12%, Fe: ≤ 0.12%, Mn: ≤ 0.03%, Ti: ≤ 0.03%, Others: ≤ 0.05% |
| Temper | T6 / T7451 (customized) |
| Diameter Range | Customized according to requirements |
| Tensile Strength | According to temper |
| Elongation | According to temper |
| Surface Finish | Bright, mill finish, or anodizing grade |
| Straightness | According to standard or customized |
| Length | Coil, spool, or cut length |
| Standards | EN, ASTM, or customized |
Applications
- Aerospace Components
Widely used for aircraft structural parts, fuselage components, wing spars, and high-load brackets.
- Military and Defense Applications
Applied in military vehicles, armor, and high-strength structural parts.
- High-Performance Automotive Components
Used in racing car frames, high-strength chassis, and other load-critical automotive parts.
- Precision Machined Parts
Suitable for CNC-machined, formed, and high-strength fasteners or structural assemblies.
- Industrial High-Load Components
Applied in cranes, heavy machinery, and other structural parts where maximum strength and fatigue resistance are required.
Packaging
| Packaging Type | Weight | Dimensions |
|---|---|---|
| Plastic Reel | 7 kg/reel | Outer Diameter: 270 mmBore Diameter: 52 mmHeight: 105 mm |
| Drum (Small) | 25–100 kg/drum | Outer Diameter: 460 mm Height: 280 mm |
| Drum (Medium) | 25–100 kg/drum | Outer Diameter: 570 mm Height: 380 mm |
| Drum (Large) | 25–100 kg/drum | Outer Diameter: 570 mm Height: 740 mm |
| Bundle | 10–40 kg/bundle | Outer Diameter: 570 mm Inner Diameter: 340 mm Height: 170 mm |