Henan Gnee New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of aluminium 7075 square bar in China. With abundant experience, we warmly welcome you to wholesale high quality aluminium 7075 square bar in stock here from our factory. Good service and reasonable price are available.
Aluminium 7075 Square Bar Description
7075 aluminum alloy is a cold-processed forged alloy with high strength, far better than mild steel. 7075 is one of the strongest alloys commercially available. After heat treatment, it can achieve very high strength properties. 7075 materials generally add a small amount of copper, chromium and other alloys. Among this series, 7075-T651 aluminum alloy is particularly top-grade and is known as the best product among aluminum alloys.
It has high strength and is far superior to any mild steel. This alloy also has good mechanical properties and anodic reaction. 7075 mainly contains zinc. It also belongs to the aviation series. It is an aluminum-magnesium-zinc-copper alloy. It is a heat-treatable alloy. It is a super-hard aluminum alloy and has good wear resistance.
7075 Aluminum Alloy Bar CHEMICAL COMPOSITION LIMITS:
|
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Others-Each |
Others Total |
Al |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7075 |
0.40 |
0.50 |
1.2-2.0 |
0.30 |
2.1-2.9 |
0.18-0.28 |
5.1-6.1 |
0.20 |
0.05 |
0.15 |
Remainder |
Technical Specifications: 7075 Aluminum Alloy Properties
| Feature | Details |
| Alloy Grade | 7075 (Al-Zn-Mg-Cu) |
| Temper Available | T6, T651, T73, O |
| Common Sizes | 10mm x 10mm to 300mm x 300mm (Customizable) |
| Surface Treatment | Mill Finish, Polished, Anodized |
| Standards | ASTM B211, EN 573-3, GB/T 3191 |
| Hardness (HB) | ≥ 150 HBW (for T6) |
Application Areas Of Aluminum 7075 Square Bar:
Aerospace: 7075 aluminum bar is widely used in aviation and aerospace, becoming one of the most important structural materials in these fields. It is commonly used in the manufacture of high-stress structural bodies, such as aviation fixtures, tower buildings, ships, and so on.
Mold Processing and Mechanical Equipment: 7075 aluminum bar is also used in the manufacture of highly stressed structural bodies such as mold processing, mechanical equipment, jigs and fixtures, as well as construction applications that require high strength and corrosion resistance.
Why Choose Our 7075 Aluminum Alloy?
Professional 7075 Aluminum Manufacturer & Supplier
As a leading aluminum alloy manufacturer in China, we specialize in high-precision extrusion and strict quality control. Our 7075 aluminum square bars undergo rigorous ultrasonic testing to ensure no internal defects, cracks, or impurities, meeting the stringent demands of the aviation and defense industries.
Advanced Production & Quality Control
Precision Cutting: We provide customized length cutting services with a tolerance of +/- 0.5mm.
Stock Availability: We maintain a large inventory of 7075-T6 square bars to ensure fast lead times for urgent projects.
Certification: Full MTC (Mill Test Certificate) provided with every shipment, ensuring compliance with international standards.
About us
Reliable Packaging and Global Shipping
To ensure your aluminum alloy rods arrive in perfect condition, we implement a multi-layer protection system:
Protective Film: Each bar can be wrapped in plastic film to prevent surface scratches.
Waterproof Wrapping: Bundles are wrapped in waterproof kraft paper or woven bags.
Wooden Case Export Packaging: For international sea or air freight, we use fumigation-free wooden boxes to prevent deformation and corrosion during transit.
Logistics: We cooperate with top-tier shipping lines and couriers to provide EXW, FOB, CIF, and DDP terms.
Your Trusted Aluminum Partner
GNEE is a premier manufacturer specializing in high-end aluminum products. With over 18 years of experience, we have grown into a global supplier serving over 70 countries. Our factory is equipped with advanced extrusion lines, heat treatment furnaces, and precision testing equipment. We don't just sell aluminum; we provide structural solutions for engineering excellence.
FAQ
Frequently Asked Questions about 7075 Aluminum Square Bar
Q1: What is the main difference between 6061 and 7075 aluminum square bars?
A: While 6061 is versatile and weldable, 7075 aluminum offers much higher strength (nearly double). 7075 is preferred for high-stress applications like aircraft components and high-end sports equipment.
Q2: Can you provide 7075-T651 stress-relieved bars?
A: Yes, we provide the T651 temper, which involves stretching the alloy after heat treatment to reduce internal stress, ensuring the square bar remains stable during heavy machining.
Q3: Do you provide samples for hardness testing?
A: Absolutely. We can provide small sample pieces of our 7075 square rods for your quality lab to verify the hardness and chemical composition.
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