7xxx Serious Aluminum Alloy Tubes, a high-performance structural metal product independently developed and produced by Shanghai Perfect Industry Co.,Ltd., are aluminum-zinc-magnesium alloy-based tubes (the main alloying elements are Zn and Mg, with trace Cu added for performance enhancement). The core advantage of this series lies in its superior mechanical properties—after strict heat treatment (T6/T651 temper is common), it achieves ultra-high tensile strength, excellent fatigue resistance, and good toughness. Additionally, they possess acceptable machinability and weldability (with proper process control), making them a preferred choice in numerous scenarios requiring extreme strength and reliability across aerospace, automotive high-performance parts, and industrial heavy-duty equipment fields.
Case Study: 7075-T6 Aluminum Tubes for Aerospace Landing Gear Components
Client: A global aerospace component manufacturer
Challenge: The client was developing landing gear components for a medium-sized commercial aircraft and required tubing that could withstand extreme mechanical loads (impact, tension, compression) during takeoff and landing, maintain stable performance in harsh environments (high altitude, large temperature variations), possess excellent fatigue resistance (to adapt to thousands of flight cycles), and achieve significant weight reduction compared to traditional steel tubes. Conventional steel tubes were overly heavy, while other alloy tubes (such as 6 series) lacked sufficient strength to meet aerospace safety standards.
Solution: Selected 7075-T6 aluminum tubes—a premium 7 series grade optimized for high-strength aerospace applications. The T6 temper (solution heat-treated and artificially aged) provides ultra-high tensile strength (503-572 MPa), high yield strength (434 MPa), and excellent fatigue resistance. The tubes were produced with ultra-precise dimensional tolerance, smooth surface finish, and strict internal quality control (no porosity, inclusions) to ensure compliance with aerospace component standards.
Implementation & Results:
•Mechanical performance tests confirmed that the 7075-T6 aluminum tubes achieved tensile strength of 550 MPa and yield strength of 450 MPa, fully meeting the client’s strict aerospace safety requirements for landing gear components.
•Fatigue and environmental testing showed the tubes maintained stable performance after 10,000+ simulated flight cycles and withstood temperature variations from -50℃ to 120℃ without performance degradation, reducing the risk of component failure by 60% compared to traditional steel tubing solutions.
•The 7075 tubes were 40% lighter than steel, reducing the overall weight of the landing gear assembly by 18 kg and improving the aircraft’s payload capacity and fuel efficiency by 7% (equivalent to 0.5 L/100 km fuel savings) while maintaining structural integrity.
•The tubes’ controlled weldability allowed them to be seamlessly welded with other aerospace-grade aluminum alloy components using TIG welding technology (with pre-heating and post-weld heat treatment), ensuring high joint strength (≥90% of base metal strength) and assembly precision, which met the client’s aerospace manufacturing process standards.
Conclusion: 7075-T6 aluminum tubes addressed the client’s dual challenges of ultra-high structural strength and lightweight requirements, making them a superior material for aerospace landing gear components.
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Specification Item |
Details |
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Product Model |
7xxx Serious Aluminum Alloy Tubes (Main grades: 7075, 7050, 7A04, etc.) |
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Material Composition |
Aluminum-zinc-magnesium alloy-based (main elements: Zn, Mg), with aluminum content ≥87%, and trace elements such as Cu, Cr for strength and corrosion resistance optimization |
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Outer Diameter |
Customizable from 8mm to 180mm (common grades: 7075: 8-150mm; 7050: 10-180mm) |
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Wall Thickness |
Customizable from 1.0mm to 25mm (common grades: 7075: 1-20mm; 7050: 2-25mm) |
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Length |
2000mm - 10000mm (supports custom cutting as per customer requirements) |
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Corrosion Resistance |
Good resistance to atmospheric corrosion; prone to stress corrosion cracking in untreated state, but excellent stress corrosion resistance after over-aging treatment (T73 temper); 7050 grade has better corrosion resistance than 7075 |
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Machinability |
Good machinability in T6 temper (needs proper cutting tools and parameters), compatible with cutting, drilling, milling, and bending (with pre-heating); weldable via TIG/MIG welding with pre-heating and post-weld heat treatment to avoid cracking |
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Tensile Strength |
≥228MPa (O temper); ≥503MPa (T6 temper, 7075 grade); ≥517MPa (T6 temper, 7050 grade) |
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Yield Strength |
≥103MPa (O temper); ≥434MPa (T6 temper, 7075 grade); ≥455MPa (T6 temper, 7050 grade) |
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Elongation |
≥10% (O temper); ≥8% (T6 temper, 7075/7050 grades) |
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Surface Treatment |
Natural oxidation, anodizing (black, silver), passivation, or over-aging treatment (for corrosion resistance enhancement); anodizing requires proper pre-treatment to ensure coating adhesion; customizable based on customer needs |
1.Aerospace sector (landing gear components, wing spars, aircraft hydraulic tubes, engine accessories)
2.Automotive high-performance sector (racing car chassis, suspension components, brake calipers, lightweight engine parts)
3.Industrial heavy-duty equipment sector (heavy machinery structural parts, high-pressure hydraulic tubes, tooling and die frames)
4.Marine high-performance sector (fast boat hull frames, marine engine components, offshore platform accessories)
5.Sports equipment sector (high-end bicycle frames, golf club shafts, professional climbing equipment)
6.Other sectors: Also widely used in fields such as precision instruments, military equipment components, and high-speed train lightweight parts.
•Raw Material Inspection
•Production Process Supervision
•Finished Product Testin
1.Professional Focus
2.Strong Supply Capacity
3.Cost Advantage
4.Perfect Quality System
5.Professional Technical Support
•Inner packaging: Each tube is wrapped with moisture-proof and dust-proof film to prevent oxidation and surface contamination during transportation and storage.
•Outer packaging: Use sturdy cartons or wooden pallets for fixing and packaging, which can effectively prevent deformation and damage of the tubes during long-distance transportation and ocean shipping.
•Custom packaging: Support customized packaging solutions according to customer requirements (such as special packaging materials, packaging specifications, etc.) to ensure the safety of products during transportation.
1.Q: Do you provide samples? How to apply for samples?
A: We provide free samples (customers only need to bear the shipping cost). You can contact our sales team via email or phone, provide your company information, detailed product requirements (such as outer diameter, wall thickness, surface treatment, etc.), and we will arrange sample delivery promptly.
2.Q: What payment methods are supported?
A: We support international common payment methods such as T/T and L/C. Specific payment terms can be negotiated flexibly according to the order quantity, order amount, and long-term cooperation mode.
3.Q: How to ensure the product quality during transportation?
A: We adopt professional packaging suitable for long-distance and ocean transportation to enhance the protection of products. At the same time, we cooperate with well-known international logistics companies with rich experience in transporting metal products to ensure the smooth transportation of goods. In addition, we can purchase transportation insurance for customers according to their needs to fully reduce the risk of product damage during transportation.
4.Q: Are you a manufacturer or a trader?
A: We are a group company integrating production, warehousing, and sales, consisting of two trading companies, two warehouses, and one factory. We have two advanced production lines dedicated to the production of aluminum alloy tubes and maintain a standing inventory of 2,500 tons. Shanghai Perfect Industrial Co., Ltd. is mainly responsible for overseas sales business. We are also authorized distributors of several state-owned factories in China, ensuring sufficient supply capacity and product quality stability.
•Provide free standard samples, sample size: 100mm in length (standard size, available grades: 7075-T6, 7050-T6). For customized sample sizes, special tempers (such as T73), or special surface treatments, a certain fee will be charged, which can be deducted from the formal order payment later.
•Sample delivery time: 3-5 working days after confirming the sample requirements and relevant details with the customer.
Address
No.6 Wenchuan Rd.,Baoshan Dist., Shanghai,China
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