7075 Aluminum Extrusion

Why Is 7075 Aluminum Extrusion Highly Favored?

durability, and lightweight design are essential. 7075 aluminum extrusion has become an ideal material in these fields, thanks to its steel-like strength, exceptional fatigue resistance, and low density.

Among all extrudable aluminum alloys, 7075 aluminum ranks among the strongest—especially in 7075-T6 and 7075-T6511 tempers, with tensile strength reaching up to 560 MPa, far exceeding that of common 6061 aluminum. Its outstanding fatigue resistance and impact tolerance make it suitable for high-load, extreme environments with strict structural stability demands.

However, this high strength brings manufacturing challenges. Due to its unique composition, 7075 extrusion is significantly more difficult to form than 6-series alloys. It requires precision extrusion equipment, optimized heat treatment, and strict dimensional control and surface protection. Many suppliers struggle to meet these technical requirements, resulting in high defect rates, long lead times, and compromised end-product performance.

Chalco – Your Trusted Supplier of 7075 Aluminum Extrusions

As a global leader in high-performance aluminum alloys, Chalco offers strong production capacity and advanced processing to deliver high-quality, customizable 7075 extruded profiles for aerospace, defense, rail transportation, and other demanding sectors.

• Exceptional Capacity: 98 extrusion lines with 5MN to 125MN presses support everything from precision micro parts to large, complex sections.
• Advanced Technology: High-precision dies and intelligent heat treatment enhance the strength, fatigue resistance, and dimensional stability of 7075 aluminum.
• Strict Quality Control: Full-process X-ray inspection, ultrasonic testing, and tensile testing ensure compliance with aerospace and military standards.
• Global Certifications: Compliant with EN 755, ASTM B221, QQ-A-200/11, AMS 4154/4166/4167/4168/4169, making it ideal for aerospace, defense, rail systems, and automotive applications.

If you require high-strength, lightweight 7075 aluminum extrusions, Chalco is ready to provide the optimal solution.Contact us today for expert advice and a customized quote!

7075 Aluminum Extrusion: Product Types & Selection Guide

Thanks to its high strength, superior fatigue resistance, and lightweight properties, 7075 aluminum extrusion is widely used in aerospace, defense, rail transit, and racing vehicle manufacturing. But how do you select the right profile to match performance needs while avoiding unnecessary cost? The guide below helps you understand different 7075 extrusion types and choose the best solution.

7075 Solid Aluminum Extrusions

Standards: EN 755, ASTM B221, ASTM B241, ASTM B210

Tempers: 7075-T6, 7075-T6511 (ideal for strength and CNC machining)

Features: High strength, stiffness, dimensional stability

Applications: Aircraft frames, racing chassis, heavy-load mechanical structures

Common Types

7075 Round Bar

7075 Aluminum Square Bar

7075 Aluminum Rectangular Bar

7075 Aluminum Flat Bar

7075 Aluminum Hex Bar

7075 Aluminum Half-Round Rod

7075 Hollow Aluminum Extrusions

Standards: EN 755, ASTM B211, ASTM B241, ASTM B210, AMS-QQ-A-200/11

Tempers: 7075-T73511 (improved corrosion resistance)

Features: Aircraft fuel lines, racing suspensions, lightweight support frames

Applications: Aircraft frames, racing chassis, heavy-load mechanical structures

Common Types

7075 Round Tube

7075 Square/Rectangular Tube

7075 Streamlined Tube

7075 Standard Structural Extrusions

Standards: EN 755, ASTM B211

Tempers: 7075-T6511 (high strength, stable dimensions)

Features: Structural rigidity, excellent dimensional control

Applications: Frameworks, rail transport, military equipment

Common Types

7075 Aluminum Angles

7075 Aluminium T Section

7075 Aluminum Beams

7075 Custom Extruded Profiles

Features: Tailored cross-sections, high machining precision

Standards: EN 755, ASTM B221, AMS 4044/4154

Tempers: 7075-T6, 7075-T73, 7075-O (for varied mechanical needs)

Applications: Precision aerospace components, defense equipment, spacecraft frames

Production Capabilities

• Complex Section Design: Support for custom shapes and cross-sections
• High-Precision CNC Machining: Cutting, drilling, milling, turning
• Surface Treatments: Anodizing, electrophoresis, powder coating for enhanced corrosion protection

Common Types

7075 Large Extrusions

7075 Thin-Wall Extrusions

7075 Precision Extrusions

Can't find the right profile? Chalco offers fully customized 7075 extrusion solutions, including OEM design services, to meet your exact specifications. Quick Quote

The mechanical strength, machinability, and corrosion resistance of 7075 aluminum extrusions depend heavily on the selected temper. Depending on your needs, Chalco provides a range of options including T6511, T73511, and T76511, optimized for strength, corrosion resistance, dimensional accuracy, and fabrication performance.

7075-T6511 Aluminum Extrusion (For Precision Machining)

Undergoes solution heat treatment + stress relief by stretching + artificial aging, resulting in significantly improved strength and excellent dimensional stability. Minimizes deformation during machining, making it ideal for CNC precision processing. Commonly used in high-load, fatigue-resistant applications.

Need CNC machining and dimensional stability? Choose high-strength, precision-grade 7075-T6511 aluminum extrusions! Quick Quote

Key Properties

Application Industries

• Aerospace structures: fuselage frames, wing spars
• Rail transit: high-strength connectors
• Defense equipment: armored components

7075-T73511 Aluminum Extrusion (Corrosion Resistance)

Based on T73 over-aged temper, with additional stress relief by stretching to improve stability. It sacrifices some strength for a significant increase in stress corrosion resistance, ideal for humid, salt-spray, and long-term service environments.

Require superior corrosion resistance? 7075-T73511 aluminum extrusions are your best choice! Quick Quote

Key Properties

• Aerospace: military aircraft frames, wing assemblies
• Marine engineering: ship structures, deep-sea components
• Humid environments: outdoor exploration devices

7075-T76511 Aluminum Extrusion (Strength + Corrosion Resistance)

Processed with T76 high-temperature aging + stress relief by stretching, it combines high strength with excellent corrosion resistance. Compared to T6511, it offers better SCC resistance; compared to T73511, it delivers higher strength. Perfect for lightweight structural parts in high-stress, corrosive environments.

Need both strength and corrosion resistance? 7075-T76511 aluminum extrusions offer the perfect balance!引导转化按钮

Key Properties

Application Industries

• Aerospace: high-strength, corrosion-resistant support parts
• Military: lightweight, high-strength weapon components
• Rail systems: load-bearing parts in high-speed trains

Applications of 7075 Aluminum Extrusions

Aerospace-Grade 7075 Extrusions

The aerospace industry demands materials that are both lightweight and extremely strong. 7075 aluminum offers steel-like strength at only one-third the weight. Its outstanding fatigue resistance allows it to withstand repeated loads during long-duration flights.

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Standards: ASTM B221, AMS-QQ-A-200/11, AMS 4154, AMS 4167, AMS 4169

Aerospace Certifications: AS9100, Airbus, Collins Aerospace, Safran Aerospace

Application Components

• Fuselage frames
• Landing gear brackets
• Wing support beams
• Fuel system tubing
• Aircraft seat tracks

Military-Grade 7075 Aluminum Extrusions

With its high strength and fatigue resistance, 7075 aluminum is ideal for light armor, firearm parts, and UAV structures. In particular, the T73511 temper enhances stress corrosion resistance, making it suitable for harsh environments.

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Standards: MIL-DTL-32341, AMS 4167, AMS 4169

Application Components

• Military armor parts: protective plates, bulletproof vehicle frames
• Firearm components: stocks, rails, barrel brackets
• Drone airframes
• Missile and aerospace support structures

Rail Transit

High-speed trains and rail systems require components with light weight, high strength, and excellent fatigue performance. With strength roughly 80% higher than 6061, 7075 aluminum improves structural stability, reduces train weight, enhances fuel economy, and minimizes long-term fatigue failures.

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Standards:EN 755, ASTM B221, AMS-QQ-A-200/11

Application Components

• Train body frames
• Track support elements
• Carriage frames and connectors

High-End Racing Vehicles

Racing applications demand materials with an exceptional strength-to-weight ratio to boost handling and speed. 7075-T6 aluminum extrusions are far stronger than traditional alloys, making them ideal for suspension systems, chassis frames, and roll cages, where they handle extreme loads while staying lightweight.

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Standards:FIA Racing Standards, ASTM B221, AMS-QQ-A-200/11

Application Components

• Suspension systems
• Chassis frames
• Roll cages

Outdoor Gear & Lightweight Equipment

High-performance outdoor equipment must be light, strong, and durable. Compared to 6061, 7075 aluminum offers superior strength, rigidity, and long-term impact resistance, making it perfect for bicycle frames, trekking poles, and ski equipment.

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Standards:ASTM B221, AMS-QQ-A-200/11

Application Components

• High-end bicycle frames
• Trekking poles & tent rods
• Ski equipment

Chalco's Deep Processing Capabilities for 7075 Aluminum Extrusions

As a professional supplier of 7075 aluminum extrusions, Chalco not only delivers high-quality 7075 aluminum profiles, but also provides comprehensive deep processing and advanced surface treatment capabilities. Tailored for the high strength of 7075 alloy, our processing methods ensure dimensional accuracy, mechanical performance, and corrosion resistance for demanding industries like aerospace, defense, and rail transportation.

Precision Machining Capabilities

Due to the high strength of 7075 aluminum, conventional machining can lead to tool wear, thermal deformation, or dimensional errors. Chalco is equipped with fully automated CNC systems for high-precision cutting, drilling, tapping, milling, and turning, with tolerances as tight as ±0.01 mm.

• 5-Axis CNC Machining Centers – Ideal for aerospace and military-grade precision parts
• High-Speed Milling – For strong structural components with optimized cutting paths and improved efficiency
• Precision Drilling & Tapping – Ensures high stability in mechanical joints

Chalco's CNC machining capabilities meet the strictest standards required for 7075 aluminum extrusions in high-end sectors. Custom machining services are welcome! Quick Quote

Bending & Forming Capabilities

In T6 and T6511 tempers, 7075 aluminum has extremely high strength and is prone to cracking during bending. Chalco is equipped with full-process cold bending, hot bending, roll bending, and stretch bending systems to ensure formability while maintaining structural integrity.

• O-Temper Preforming + Post Heat Treatment – For complex profiles, pre-bend in O temper, then heat treat to T6 to achieve final strength
• Hot Forming (200–300°C) – Improves ductility and prevents cracking, suitable for large structures
• Stretch Bending & Roll Bending – Ideal for aircraft fuselage frames, high-speed rail structures, and other large-scale frameworks

Chalco's bending and forming services greatly enhance the formability of 7075 extrusions, ensuring precision and stability for complex structural parts. Quick Quote

Surface Treatment Capabilities for 7075 Aluminum Extrusions

Due to its high copper content (1.2–2.0%), 7075 aluminum has relatively low corrosion resistance, especially in humid or salt-spray environments, where it is prone to stress corrosion cracking (SCC). To enhance product durability, Chalco offers a full range of surface treatment solutions, ensuring excellent performance in harsh conditions.

• Standard Anodizing

  Ideal for aerospace, defense equipment, and rail transit.

  Forms a protective oxide film for improved corrosion resistance

  Increases surface hardness to over HV 300, enhancing wear resistance

  Available in black, gray, and other color finishes

• Hard Anodizing (Type III)

  Recommended for high-friction, high-impact applications such as military gear, armor systems, and racing components.

  Oxide layer thickness up to 25–50 μm

  Triple the wear resistance of standard anodizing

  Greatly enhances corrosion protection and product lifespan

• Electrophoretic Coating (E-Coating)

  Suitable for aerospace, military equipment, premium automotive, railway systems, and precision machinery.

  Applies a uniform, dense coating through electrostatic deposition

  Improves abrasion resistance and extends service life

  Available in clear, black, and metallic finishes for aesthetic versatility

Supply Chain & Delivery Capabilities: Efficient Fulfillment, Worry-Free Projects

In high-end manufacturing, a stable supply chain and rapid delivery are essential. As a global leader in 7075 aluminum extrusion, Chalco offers dependable, efficient supply solutions backed by large-scale production capacity, extensive inventory, and flexible customization services.

Ready-to-Ship Inventory – Delivery in 7 Days

Chalco maintains a wide stock of standard 7075 round bars, tubes, angles, and more. These products can be matched from existing inventory and shipped within as fast as 7 days, ensuring smooth project progress.

Die Library Matching – Faster Lead Time & Lower Cost

If your desired profile is not in stock but falls within our standard die library, we can match it to existing dies covering round bars, tubes, flat bars, angles, T profiles, and more—avoiding mold fees and significantly reducing tooling time.

Custom Tooling & Mold Cost Refund for Bulk Orders

For fully customized 7075 extrusions, Chalco offers professional die design services, including support for complex cross-sections and multi-cavity profiles. Bulk order clients can enjoy tooling cost refund policies, reducing upfront investment and improving procurement flexibility.

Massive Production Capacity & Global Supply Assurance

With 10, 000-ton aluminum extrusion lines, full-scale heat treatment systems, and automated processing centers, Chalco delivers large-section, high-strength 7075 extrusions for demanding sectors like aerospace, rail transit, and defense. We serve clients across Europe, Southeast Asia, the Middle East, and more, including Airbus, Collins, Safran, Boeing, and Tesla.

Need reliable supply and fast delivery?Contact us today for inventory details and lead time consultation!

FAQ

What Temperature Range Is 7075 Aluminum Extrusion Suitable For?

7075 aluminum alloy performs stably between -50°C and 120°C, making it ideal for aerospace, rail transit, and defense applications. However, in high-temperature environments (above 150°C), strength decreases. For such applications, choose the appropriate temper: 7075-T6 for general use, 7075-T73 for better thermal resistance.

How Can I Prevent Stress Corrosion Cracking (SCC) in 7075 Aluminum?

Due to its higher copper content, 7075 aluminum is more susceptible to stress corrosion cracking (SCC) than 6-series alloys, especially in humid or aggressive environments. To improve corrosion resistance:

• Use 7075-T73 or 7075-T73511 temper instead of T6 to reduce SCC risk
• Apply anodizing, hard anodizing, or cladding for enhanced protection
• Use low-stress machining methods to avoid internal stress accumulation and crack propagation

Can 7075 Aluminum Extrusion Be Bent?

7075 aluminum is one of the strongest aluminum alloys, with high hardness but relatively low formability. Bending is challenging and may not be feasible for complex shapes. For applications involving bending, we recommend consulting our engineering team for optimized forming solutions or more suitable tempers.

Is 7075 Aluminum Extrusion Weldable?

7075 aluminum has poor weldability. It is prone to hot cracking and reduced joint strength during welding. Standard fusion welding is not recommended.

Alternative joining methods:

• Riveting & mechanical fastening: Ideal for high-strength assemblies in aerospace and rail applications
• Adhesive bonding: For thin-walled parts with minimal thermal distortion
• Special welding methods (e.g., electron beam welding, friction stir welding): Applicable in specific industrial scenarios

Do You Offer CNC Machining Services for 7075 Aluminum Extrusions?

Yes. Chalco provides comprehensive 7075 aluminum machining solutions, including:

• CNC machining: Precision cutting, drilling, tapping, milling, turning
• Custom extrusion: Tooling based on drawings, support for complex cross-sections
• Surface treatments: Anodizing, hard anodizing, E-coating, powder coating, etc.

Perfect for aerospace, defense, racing, and rail applications requiring high-precision processing.

What Is the Minimum Order Quantity (MOQ) for 7075 Aluminum Extrusions?

MOQ depends on product type and order requirements:

• Stock profiles (round bars, tubes, angles): Small quantities supported, delivery in as fast as 7 days
• Standard dies: MOQ 500–1000 kg; matched to existing dies to reduce tooling cost
• Custom dies: MOQ 1–3 tons; mold fees refundable for large-volume orders

Want to check current inventory? Contact us today!Quick Quote

What Is the Typical Lead Time for 7075 Aluminum Extrusions?

Delivery time varies by product and customization level:

• Stock items: Ships within 7 business days
• Standard profiles with existing dies: 15–20 days (die setup + production)
• Custom die & production: 25–30 days (tooling + extrusion)

Chalco's global supply network offers sea, air, and land transportation to meet delivery needs across all regions.

What Standards Does Chalco's 7075 Extrusion Meet?

Chalco's 7075 aluminum extrusions comply with major international standards:

• U.S. Standards: ASTM B221, ASTM B241
• European Standards: EN 755, EN 754
• Aerospace & Defense: AMS-QQ-A-200/11, AMS 4154, AMS 4167, AMS 4168, AMS 4169
• Quality Certifications: ISO 9001, AS9100

Material Test Certificates (MTCs) and third-party inspection reports available upon request.

Can 6061-T6 Replace 7075-T6?

While both are popular aluminum alloys, they differ significantly:

7075-T6: Higher strength and fatigue resistance, best for high-load structural applications

6061-T6: Better weldability and corrosion resistance, ideal for general engineering use

Your material choice should depend on specific application needs.See full comparison: 7075-T6 vs. 6061-T6

Which Is Better: 2024 or 7075 Aluminum?

Both are high-strength aluminum alloys, but their characteristics differ:

7075 aluminum: Higher tensile strength and impact resistance, best for high-load, structurally critical parts in aerospace and defense

2024 aluminum: Superior fatigue resistance, ideal for aircraft skins, frames, and parts subject to cyclic loads

Composition:

2024 = Aluminum + Copper + Magnesium

7075 = Aluminum + Zinc + Copper

Learn more: 2024 vs. 7075 Aluminum.