7075 Aluminum Rod

7075 aluminum bar is an Al-Zn-Mg-Cu super-hard aluminum alloy (GB/T 3191), containing 5.6% Zn, 2.5% Mg and 1.6% Cu, with a tensile strength of ≥560MPa in T6 state and a hardness of HB≥150. It has the highest specific strength among aluminum alloys. Its characteristics include: ultra-high load-bearing capacity, excellent fatigue resistance, but weak corrosion resistance (surface protection required). It is specially used in extreme load-bearing scenarios such as aviation landing gear, missile shells, and racing car drive shafts. During processing, attention should be paid to the tendency of stress cracking. It is recommended to strengthen after solid solution (O) forming.

As an aviation-grade aluminum alloy, 7075 aluminum rod has ultra-high strength (tensile strength ≥ 524MPa), comparable to many steels. Its excellent specific strength (strength/density ratio) reaches 164MPa·cm³/g, which is twice that of ordinary aluminum alloys. At the same time, it has good stress corrosion resistance (passed the EXCO test), and the hardness can reach HRB87 after heat treatment, and the elongation is maintained at 5-11%. The unique Zn-Mg-Cu formula increases its fatigue strength by 35% compared with 6061 alloy, making it the preferred material in the aerospace field.

Adopt a three-level protective packaging system:

1. Single aluminum rod PE film wrapping + end steel sheath

2. Vapor phase rust prevention (VCI) treatment

3. Special fixing device for steel frame container

Equipped with temperature and humidity recorder, the whole process of sea transportation is monitored. Support DDU/DDP terms, and can be reached in 18 days at major ports around the world. The annual export volume exceeds 15,000 tons. The specially designed shockproof packaging can withstand 3G impact acceleration to ensure zero damage transportation of precision aviation materials.

Provide multiple states:

- Precision forging (streamlined structure)

- CNC turning (surface roughness Ra0.8μm)

- Deep hole drilling (length-to-diameter ratio can reach 30:1)

- Anodic hard oxidation (film thickness 50-100μm)

Support aviation-grade special processing, such as wire cutting (accuracy ±0.005mm) and five-axis linkage processing.

Mainly used in:

- Aerospace: aircraft keel beams, landing gear (NADCAP certified)

- Military equipment: missile shells, armored parts (compliant with MIL-A-22771)

- Racing: F1 suspension parts (40% weight reduction)

- Precision molds: injection mold cores (life extended by 3 times)

It is particularly outstanding in satellite structural parts and can withstand extreme temperature cycles in space (-270℃ to +120℃).

Core export markets:

- North America (45%): Boeing and Lockheed Martin qualified suppliers

- Europe (35%): Airbus and Safran Group long-term cooperation

- Asia Pacific (15%): Mitsubishi Heavy Industries strategic partner

Annual export volume 12,000 tons, holding AS9100D aviation certification, familiar with AMS-QQ-A-225/8, GB/T 3191 and other standards, and can provide Russian and French technical documents.

Production equipment:

- Industrial CT (defect detection accuracy 0.02mm)

- Residual stress analyzer (X-ray diffraction method)

- High-frequency fatigue testing machine (maximum load 50kN)

Achieve digital traceability of the entire process (MBD three-dimensional data management).