Variable diameter aluminum tube is a special aluminum alloy tube with gradual changes in diameter or wall thickness. As a global leading aluminum processing product manufacturer, Chalco (Aluminum Corporation of China) provides the market with high-performance variable diameter aluminum tube products with its outstanding technical strength and rich industry experience.
Chalco's variable diameter aluminum tube is not only lightweight and high-strength, but also can meet the needs of complex industrial applications for precision processing and strict quality control. From high-speed trains to radar communication equipment, Chalco's variable diameter aluminum tube is widely used in many key fields and has become the preferred solution trusted by customers.
Gradient wall thickness inner cone aluminum tube
The gradient wall thickness inner cone aluminum tube is an aluminum tube with special structure and excellent performance. Its wall thickness gradually changes from one end to the other, and the internal shape is conical. This kind of aluminum tube is widely used in aerospace, high-speed trains and other fields, meeting the needs of various complex application scenarios.
- Alloy temper: 2024-T351
- Specifications: 70mm × 70mm, wall thickness gradually changes from 11.5mm to 3.5mm, length 8000mm
- Technical standard: ASTM B210M-2005 and technical agreement between the two parties
- Dimension tolerance: outer diameter: ±0.3mm, wall thickness: 11.5mm (±0.7mm), 3.5mm (-0.3mm ~ +0.4mm)
- Features: The inner cone structure has a uniform transition of wall thickness and a long length, which is suitable for structural parts with high strength and precision requirements. This design allows the aluminum tube to distribute stress more evenly when subjected to pressure or load, thereby improving its overall strength and stability.
Equal wall thickness round variable diameter aluminum tube
Constant wall thickness round variable diameter aluminum tube refers to a round aluminum tube with a changing diameter while keeping the wall thickness unchanged. This type of aluminum tube is unique in structure, with the wall thickness remaining the same throughout the tube length, but the diameter can be adjusted as needed to meet specific application scenarios.
- Alloy temper: 7020-T6
- Specifications: outer diameter gradually changes from 60mm to 42mm, wall thickness constant 3.0mm
- Mechanical properties: tensile strength ≥370MPa, yield strength ≥310MPa, elongation ≥11%
- Technical standards: XZ/H6897-2007 enterprise standard or technical agreement between the two parties
- Features: The characteristic of equal wall thickness circular variable diameter aluminum tube is constant wall thickness, ensuring uniform pressure distribution, improving strength and stability. Its variable diameter characteristics make it easy to connect pipes of different diameters to meet various application requirements.
- Use: Used for high-speed train pantograph structural parts, with high strength and fatigue resistance.
Double-ended reducer aluminum tube
Double reducer is an aluminum tube with different diameters at both ends. Its length and wall thickness can be customized according to specific needs. This pipe design allows connections between pipe systems with different diameters, thus achieving flexibility and adaptability of the pipe system.
- Alloy temper: 6061-T6
- Specifications: outer diameter changes from 75mm to 45mm, wall thickness is constant at 1.2mm, length is 5000mm
- Technical standards: technical agreement between the two parties
- Dimension tolerance: small head inner diameter: 45mm (±0.05mm), large head outer diameter: 75mm (±0.05mm)
- Concentricity: <0.7mm
- Surface requirements: no >0.05mm deep scratches are allowed, and the number of <0.05mm scratches does not exceed 2.
- Features: Long tube double-end diameter change to ensure processing accuracy, widely used in mechanical and industrial equipment connectors.
Equal wall thickness tapered aluminum tube
The constant wall thickness tapered aluminum tube is an aluminum pipe material with a tapered cross-section design and a constant wall thickness throughout the entire length. This tube gradually decreases from one end to the other, forming a tapered structure, while its wall thickness remains constant throughout the entire length, ensuring that the tube has a uniform strength distribution when under pressure.
- Alloy temper: 7020-T6
- Specifications: outer diameter changes from 63.3mm to 44.2mm, wall thickness constant 3.0mm
- Mechanical properties: tensile strength ≥370MPa, yield strength ≥310MPa, elongation ≥11%
- Technical standard: XZ/H6897-2007 enterprise standard or technical agreement between the two parties
- Use: core components of high-speed train pantographs, providing stable power transmission.
Equal wall thickness oval gradient aluminum tube
The uniform wall thickness oval gradient aluminum tube refers to an aluminum tube with an oval cross section and a constant wall thickness over the entire length of the tube. The cross-sectional shape of this tube may show a gradual change from one end to the other, which is called "gradient".
- Alloy temper: 7020-T6
- Specifications: Big head: long axis 72mm × short axis 48mm, wall thickness 3.0mm, small head: long axis 50mm × short axis 34mm, wall thickness 3.0mm
- Mechanical properties: tensile strength ≥370MPa, yield strength ≥310MPa, elongation ≥11%
- Features: The wall thickness of the entire pipe is consistent, which ensures the uniformity and stability of the pipe when it is under pressure. The unique elliptical cross-section makes this pipe more adaptable and beautiful in certain application scenarios.
- Use: Used in high-speed trains, suitable for complex structural design, and improves fluid mechanics performance.
Antenna aluminum tube
Antenna aluminum tube is one of the basic components of the antenna, and is mainly used to construct the antenna's radiator, support body and other parts.
- Alloy temper: 2A12-T4
- Specifications: The outer diameter changes from 40mm to 35mm and then to 31mm, and the wall thickness is constant at 2.5mm
- Technical standard: GB/T6893-2010
- Features: The high-precision aluminum tube is precisely processed to meet the antenna's requirements for dimensional accuracy. It also has high strength, corrosion resistance and good conductivity, ensuring that the antenna can stably transmit electromagnetic waves in various harsh environments.
- Use: Core components of communication equipment such as communication antennas, broadcast antennas, and radar antennas.
Reducer for train bow
The reducer for train pantograph (commonly known as pantograph) is a special pipe connector used in the train pantograph structure. In the train pantograph, the reducer is mainly used to connect components of different diameters to adapt to the complexity and diversity of the pantograph structure.
- Alloy temper: 7020-T6
- Standard: XZ/H6897-2007 enterprise standard or technical agreement drawn up by both parties
- Features: In order to meet the accuracy requirements of train pantographs, reducers need to be precisely processed and manufactured to ensure the accuracy of their size and shape. This helps to ensure good contact between the pantograph and the contact network and improve the current collection quality.
- Use: High-speed train pantographs, subway train pantographs.
What are the advantages of Chalco reducer aluminum tube?
Lightweight and high strength: High-performance aluminum alloys such as 7020, 6061 have excellent tensile strength and corrosion resistance, while maintaining lightweight characteristics, suitable for multiple high-demand fields.
Precision machining: Through advanced production processes such as precision extrusion and heat treatment, ensure strict control of dimensional tolerances to meet customer needs.
Customized service: Reducers of different specifications, shapes and alloy types can be provided according to customer requirements to meet specific application requirements.
Quality control: Each reducer undergoes strict mechanical property, size and surface quality testing to ensure high-standard product delivery.
Widely used: It is widely used in key industries such as high-speed trains, aerospace, and communication equipment to adapt to complex working environments.
Chalco reduced aluminum pipe cooperation areas
Aerospace: In aircraft structures and transmission systems, Chalco's reducers meet the stringent requirements of high precision and high performance with excellent corrosion resistance and strength.
Communication equipment: Provide reducer products for radar antennas, base station equipment, etc. to ensure stable operation in complex environments.
Automotive manufacturing: Suitable for transmission systems and lightweight structural components of new energy vehicles, helping to achieve energy conservation and emission reduction goals.
Energy and chemical: In pipeline transportation, pressure vessels and other fields, reducers can withstand high-pressure environments and maintain excellent performance.
Industrial equipment: Support fluid and gas transmission systems of various complex mechanical equipment, providing reliable and durable connection solutions.
Chalco featured reducers gallery
Why choose Chalco's reduced aluminum tubing?
Choosing Chalco's variable diameter aluminum tube means choosing a high-quality, high-performance and reliable partner.
Leading technical strength
Chalco has advanced aluminum processing technology and rich R&D experience. Whether it is an inner cone tube, a double-ended reducer tube, or a constant wall thickness cone tube, Chalco can ensure that the variable diameter aluminum tube products meet strict mechanical properties and dimensional tolerance requirements through precision extrusion and heat treatment technology.
Complete equipment
Chalco is equipped with advanced equipment such as bending machines, blasting test equipment, tensile testing machines and metallographic microscopes, which can accurately complete product processing, performance testing and material analysis to ensure the high quality and reliability of products such as variable diameter aluminum tubes.
Complete product range
Chalco provides a variety of types of variable diameter aluminum tubes, including gradient wall thickness inner cone tubes, constant wall thickness round reducers, double-ended reducers, elliptical gradient tubes, etc., which can meet the needs of different industrial applications, from high-speed train pantographs to radar communication equipment.
Customized solutions
Chalco provides comprehensive customized services for customers' special needs. From product design to technical agreement signing, and then to the adjustment and optimization of processing technology, Chalco is always committed to providing personalized solutions that meet customer requirements.
Strict quality standards
Chalco strictly implements international standards (such as ASTM B210M-2005), corporate standards (such as XZ/H6897-2007), and signs technical agreements according to customer needs. Each reducer aluminum tube must undergo multiple tests, including dimensional tolerance, mechanical properties, and surface defect inspection to ensure impeccable product quality.
