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Custom Aluminum Extrusion for Aerospace

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  • Aluminum Extrusion for Aerospace

Aluminum Extrusion for Aerospace

Aerospace aluminum extrusion profiles operate at the intersection of maximum structural efficiency and rigorous qualification requirements. Every gram of material must contribute to structural performance, and every dimension must remain within specification across the full temperature and load envelope of the application. Our aerospace extrusion capability is built around high-strength alloys and the process controls necessary to meet the documentation and traceability standards of the aerospace supply chain.

Primary alloys include 7003, 7108, and 7021, achieving tensile strengths exceeding 400 MPa—sufficient for transmission system components, aerospace pallets and containers, structural brackets, and load-bearing enclosures where weight-to-strength optimization is the primary engineering driver. The naturally aged T5 temper, commonly specified for 7XXX aerospace extrusions, provides a favorable combination of strength, toughness, and stress corrosion resistance compared to peak-aged T6 temper.

Material qualification, chemical composition verification, and mechanical property testing are conducted in accordance with applicable aerospace standards, with full certificate of conformance (CoC) and material test reports (MTR) provided with each shipment. Profile dimensional inspection reports are available on request.

Die design for aerospace extrusions accounts for the tighter dimensional tolerances, higher alloy flow resistance, and surface integrity requirements of this sector. We support first-article inspection (FAI) processes and can accommodate PPAP-equivalent documentation requirements for production approval. Engineering collaboration is available throughout the design and qualification phase.

  • Details

Applicable Alloy Grade

Core Function

Technical Implementation

Aerospace Compliance & Application Value

7003-T6, 7108-T79, and 7021-T651 grade ultra-high-strength aluminum alloys

Core material benchmark for aerospace-dedicated ultra-high-strength aluminum alloy structural components, suited to demanding aircraft operating conditions, balancing ultra-high strength, light weight, high toughness, and adaptability to aerospace environments

1. 7000-series aluminum alloys achieve a balance of ultra-high strength and high toughness through solution treatment plus multi-stage artificial aging, with tensile strength consistently exceeding 400 MPa
2. High material purity and low impurity content suit aerospace precision machining and demanding operating conditions
3. Surface treatment can further improve corrosion resistance, wear resistance, and insulation performance

1. Meets domestic and international aerospace industry material access standards, suited to structural components across all aircraft applications
2. Reduces weight by 30%–40% compared with traditional steel components, effectively lowering aircraft empty weight and improving payload and range
3. Stable performance throughout the lifecycle, suited to demanding aerospace conditions such as temperature cycling, vibration, and corrosion, ensuring flight safety

7108-T79 and 7021-T651 grade ultra-high-strength aluminum alloys, with core load-bearing components in 7003-T6 temper

Core structural component of aero-engine/onboard equipment transmission systems, enabling power transmission and precision motion positioning, withstanding high torque, high rotational speed, and cyclic loads, ensuring precise, stable, and long-lasting transmission system operation

1. Precise heat treatment of 7000-series aluminum alloys achieves a match of ultra-high strength and high toughness, suited to high cyclic-load transmission system conditions
2. Transmission tooth faces and mating surfaces undergo hard anodizing plus laser cladding reinforcement to improve surface wear resistance and impact resistance
3. Precision CNC machining plus gear grinding ensure tooth profile accuracy and mating tolerances of transmission components, suited to high-speed aerospace transmission requirements
4. Integrated forming design reduces welding and joints, improving overall structural rigidity and fatigue resistance

1. Complies with GJB 7261 and HB 7717 aerospace aluminum alloy material standards, meeting airworthiness certification requirements
2. Ensures transmission system structural integrity under high rotational speed and cyclic loads, avoiding tooth wear, fracture, or transmission failure risk
3. Lightweight design significantly reduces transmission system weight, improving aircraft power efficiency and range
4. Stable performance under demanding long-term conditions, ensuring safe and reliable transmission system operation during flight

7003-T6 and 7021-T651 grade ultra-high-strength aluminum alloys, with lightweight structural components in grade 7108-T79

Structural component for carrying materials, instruments, and munitions on aircraft/onboard equipment, providing precise positioning, fixing, and protection, withstanding high g-forces, strong vibration, and impact loads, ensuring the stability and safety of the carried load during flight

1. Heat treatment of 7003/7021 aluminum alloys achieves a match of high strength and high toughness; an integrated forming process creates the overall tray structure with no welded weak zones
2. Structural design uses reinforcing ribs plus a honeycomb structure to significantly improve structural rigidity and impact resistance while maintaining light weight
3. Surface treated with anodizing plus ceramic coating to improve corrosion resistance and wear resistance while achieving insulation protection
4. Precision CNC machining ensures dimensional accuracy of positioning holes and mounting slots, suited to rapid docking and fixing of onboard equipment

1. Complies with GJB 150 and HB 7717 aerospace environmental and material standards, meeting airworthiness requirements for onboard equipment
2. Ensures stable positioning of the carried load under strong vibration, high g-force, and impact conditions, with no displacement or damage, ensuring flight mission safety
3. Extreme lightweight design significantly reduces aircraft dead weight, improving fuel economy, range, and effective payload capacity
4. Suited to aerial cargo, onboard equipment mounting, munitions loading, and other scenarios, offering strong versatility and enabling rapid automated loading/unloading

7003-T6 and 7108-T79 grade ultra-high-strength aluminum alloys, with the enclosure frame in grade 7021-T651

Protective and load-bearing enclosure for aerospace onboard electronic equipment, precision instruments, and core components, providing sealed protection, electromagnetic shielding, heat dissipation, and structural fixing, protecting core equipment from damage in demanding aerospace environments and ensuring stable equipment operation

1. Heat treatment of 7000-series aluminum alloys achieves ultra-high strength; the enclosure is formed by integrated CNC machining, combined with sealing gaskets and welded seals to achieve IP67-level protection for the entire enclosure
2. The enclosure structure integrates cooling channels combined with high-thermal-conductivity interface materials to achieve rapid heat dissipation from core components, avoiding thermal throttling or failure
3. The aluminum alloy body provides natural electromagnetic shielding, with the surface conductive-oxidation treated to further improve shielding effectiveness, meeting the electromagnetic compatibility requirements of aerospace electronic equipment
4. Enclosure corners use rounded transitions plus reinforced design for impact and vibration resistance, suited to demanding aerospace onboard conditions

1. Complies with GJB 150, GJB 2908, and HB 7717 aerospace standards, meeting airworthiness certification requirements for onboard electronic equipment
2. Effectively protects core aerospace precision instruments and electronic equipment from damage due to temperature extremes, vibration, impact, dust, moisture, and electromagnetic interference, ensuring stable equipment operation throughout its lifecycle
3. High-strength, lightweight design significantly reduces enclosure weight while maintaining protective performance, improving aircraft effective payload
4. Suited to the protection needs of aerospace onboard computers, navigation equipment, communication equipment, precision measurement instruments, and the full range of onboard equipment

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Suzhou Dihong Aluminum Co., Ltd.
Founded in 2014, Suzhou Dihong Aluminum Co., Ltd. has evolved from a single-product aluminum distributor into a modern technology enterprise integrating aluminum distribution, aluminum extrusion, CNC machining, and precision stamping. The company has established production bases in Huishan, Wuxi, and Wujiang, Suzhou, primarily serving industries such as 3C, photovoltaics, new energy vehicles, medical equipment, and aerospace. Aluminum Extrusion for Aerospace Suppliers in China.
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Suzhou Dihong Aluminum Co., Ltd.

System Certification

We have obtained multiple international system certifications and industry qualifications. All products comply with international standards, ensuring reliable quality and long-term stable cooperation. Custom Aluminum Extrusion for Aerospace

Suzhou Dihong Aluminum Co., Ltd. Suzhou Dihong Aluminum Co., Ltd.
  • ISO9001 ISO9001
  • IATF-16949 IATF-16949
  • AS9100 AS9100