2024 3003 5052 6061 7075 Cold Drawn Aluminum Tubing

Cold drawn aluminum tubing is a process that involves extrusion through dies followed by gradual stretching and deformation using a cold-drawing machine. This cold working process results in aluminum tubes with thin walls, high precision, perfect surface smoothness, strict tolerances, and exceptional mechanical properties. Cold drawn aluminum tubing finds extensive applications in various industries, including aerospace, petrochemical, defense, medical, automotive cooling systems, and outdoor equipment telescopic tubing.Welcome to contact

Cold drawn aluminum tube - premium selection

2024 cold drawn aluminum tube

Outer Diameter: 10-140mm

Wall Thickness: 0.0315"-0.55"

Temper: O, T3, F

Standards: ASTM B210, AMS 4088, AMS 4087, AMS-WWT-700/3

Features: Representing the 2000 series, 2024 cold drawn aluminum tube is a copper-aluminum alloy known for its outstanding fatigue resistance and corrosion resistance. It is moderately easy to machine and can be welded using friction welding.

Applications: Primarily used in the aerospace industry for components requiring high strength and excellent fatigue resistance, such as aircraft structural parts and aviation engine components, and other high-strength structural applications.

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3003 cold drawn aluminum tube

Outer Diameter: 6-200mm

Wall Thickness: 0.024"- 0.70"

Temper: O, H14

Standards: ASTM B210, AMS 4065, AMS 4067, AMS-WWT-700/2

Features: Representing the 3000 series, 3003 cold drawn aluminum tube is an aluminum-manganese alloy known for its outstanding corrosion resistance, machinability, and weldability. It adapts to various mechanical machining and forming requirements, suitable for complex shapes and lightweight structures.

Applications: Mainly used in chemical equipment, pressure vessels, and heat exchangers for automotive air conditioning and condensers.

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5052 cold drawn aluminum tube

Outer Diameter: 6-200mm

Wall Thickness: 0.024"- 0.70"

Temper: O

Standards: ASTM B210, AMS 4070, AMS-WWT-700/4

Features: Representing the 5000 series, 5052 cold drawn aluminum tube is an aluminum-magnesium alloy known for its good corrosion resistance and welding characteristics.

Applications: Mainly used in hydraulic tubing and electrical applications.

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6061 cold drawn aluminum tube

Outer Diameter: 6-200mm

Wall Thickness: 0.024"- 0.70"

Temper: O, T4, T6

Standards: ASTM B210, AMS 4080, AMS 4082, AMS 4083, AMS-T-7081, AMS-WWT-700/6

Features: Representing the 6000 series, 6061 cold drawn aluminum tube is an aluminum-magnesium-silicon alloy, preferred for welding or brazing applications. It offers structural toughness, strength, good corrosion resistance, formability, excellent surface finish, and superb appearance after anodizing.

Applications: Widely used in aerospace, automotive manufacturing, camera barrels, construction, structural applications, bicycle frames, outdoor equipment, and more.

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7075 cold drawn aluminum tube

Outer Diameter: 10-140mm

Wall Thickness: 0.0315"-0.55"

Temper: O, T6, T73

Standards: ASTM B210, AMS-WWT-700/7

Features: Representing the 7000 series, 7075 cold drawn aluminum tube is a zinc alloy that can be heat-treated to achieve exceptional strength, surpassing soft steel. It offers excellent mechanical properties and corrosion resistance. 7075-T6 cold drawn aluminum tube boasts excellent machinability, resistance welding, and corrosion resistance, while 7075-T73 cold drawn aluminum tube excels in stress corrosion resistance.

Applications: Widely used in high-stress aerospace, military equipment, tent poles, arrows, flagpoles, outdoor and sports equipment.

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Cold drawn aluminum tube-specification

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Cold drawn aluminum tubing - performance

• Thin wall
• High precision and strict Tolerances
• Better surface finish
• Higher mechanical properties
• Excellent strength
• High Dimension Tolerances

Cold drawn aluminum tube - ideal applications

Aerospace and defense

For projects in the aerospace and defense industries, cold drawn aluminum tubing is the preferred choice. The cold working and heat treatment processes maximize grain structure uniformity, enhancing aluminum tube strength and mechanical performance. It is ideal for applications such as aircraft fuel lines, engine conduits, and more.

Automotive heat exchangers

Cold drawn aluminum tubing is extensively used in automotive air conditioning evaporators, condensers, and heat exchangers. It offers excellent thermal conductivity, lightweight construction, corrosion resistance, precise dimensional control, and ease of processing. It contributes to improved heat exchange efficiency, reduced vehicle load, extended system life, making it an ideal choice for automotive HVAC systems.

Outdoor equipment telescopic poles

If your application involves telescopic functionality, such as fishing rods, tent poles, and luggage handles, cold drawn aluminum tubing is the ideal choice. It features thinner wall thickness, lighter weight, superior tolerances, making it perfect for lightweight telescopic requirements in outdoor equipment.

CNC machining

When your finished products require CNC machining for final assembly, cold drawn aluminum tubing is the best choice. Cold drawn aluminum tubing offers tighter tolerances, helping to prevent binding issues caused by tolerance variations and reducing operating costs.

Cold drawn aluminum tube – shapes

Cold drawn aluminum round tube

Round tubes offer a wide range of size options, with outer diameters ranging from 2/5 inches to 9 inches and wall thicknesses varying from 0.5mm to 10mm.

View the production capacity table of cold drawn aluminum round tube

The most common alloy used is 6061-T6, highly regarded for its exceptional performance. It possesses advantages such as strength, toughness, corrosion resistance, and excellent machinability.

6061 cold drawn aluminum round tubes find extensive use in manufacturing ship and automotive components, as well as playing a significant role in various construction projects.

Cold drawn aluminum square tube

Square tubes feature distinct angles and are suitable for structural applications requiring lightweight materials.

Wall thickness ranges from 1mm to 7mm and is typically made from 6061 and 7075 alloys.

View the production capacity table of cold drawn aluminum square tube

7075 seamless square tubes are widely employed in the aircraft structural tubing within the aerospace industry.

Cold drawn aluminum rectangular tube

Rectangular tubes have inner and outer radii with square angles, and their side dimensions typically range from 10mm to 120mm. Wall thickness varies from 1mm to 7mm and is usually fabricated from 6061 and 6063 alloys.

View the production capacity table of cold drawn aluminum rectangular tube

6061 rectangular tubes are extensively used in projects emphasizing lightweight and corrosion resistance.

Cold drawn aluminum tube suppliers

Chalco boasts advanced dual-action reverse extrusion production lines, equipped with complementary extrusion equipment such as gas injection rapid preheating furnaces, hot peelers, infrared continuous temperature monitoring systems, and steam-air quenching. We also have multiple drawing production lines, including a 50-ton hydraulic drawing machine, a horizontal 14-roller straightening machine, precision cutting, and bounce inspection equipment.

As one of China's leading aluminum manufacturers, Chalco possesses hundreds of molds capable of producing a full range of cold drawn aluminum tube sizes. We can fulfill orders with various sizes and shapes, offering competitive prices and one-stop supply to alleviate your concerns. Chalco also provides services like CNC machining, bending, sawing, milling, and more. All our products are CE and ISO9001 certified, and we can customize products to meet specific standards, such as JIS, EN, ASTM, and others, according to customer requirements. For more information, please email us to discuss further. Chalco looks forward to collaborating with you!

The ultimate guide to cold drawn aluminum tubing

The following is relevant knowledge about cold-drawn aluminum pipes. If you have any questions about cold-drawn aluminum pipes, you can get answers here.

You'll learn everything about production processes, specifications, processability, quality requirements, and more.

What is cold drawn aluminum tube?

Cold Drawn Aluminum Tube is a method for manufacturing aluminum tubes that results in high precision and excellent surface quality. In the manufacturing process of cold drawn aluminum tubing, aluminum billets (initial block-shaped forms of aluminum material) undergo a series of mechanical operations, gradually stretching and shaping to form the desired tubular shape. Due to its precise manufacturing process, cold drawn aluminum tubing is suitable for applications requiring high precision, superior surface quality, and excellent mechanical performance, such as aerospace, automotive industry, medical equipment, and more.

The production process of cold drawn aluminum tube

The production process of "Cold Drawn Aluminum Tube" involves a series of steps aimed at gradually stretching the heated aluminum billet to achieve the desired tubular shape and obtain high precision and excellent surface quality. Here are typical steps in the production process of cold drawn aluminum tubing.

Material preparation

Prepare suitable aluminum alloy billets, which may involve alloying and melting of raw materials.

Heating

Heat the aluminum billets to a certain temperature to make them more malleable and easier to process. This temperature is typically above room temperature but below the material's melting point.

Cold drawing

The heated aluminum billets are passed through cold drawing machinery, such as a cold drawing machine or drawing bench, to gradually stretch them. During this process, the aluminum billets undergo deformation, with both the inner and outer diameters gradually decreasing while the length increases.

Multiple drawing passes

Typically, aluminum billets go through multiple drawing passes, with each pass gradually reducing their cross-sectional dimensions, resulting in higher dimensional accuracy and surface quality.

Cooling

Cooling may be applied during the drawing process to control temperature and maintain the appropriate plasticity.

Finishing

The drawn aluminum tubes may undergo finishing processes such as cutting, straightening, and surface refinement to achieve the desired dimensions and surface quality.

Heat treatment

In some cases, the aluminum tubes may be subjected to heat treatment to improve material properties, relieve internal stresses, or achieve specific material hardness and strength.

Surface treatment

Depending on requirements, the inner and outer surfaces of aluminum tubes may undergo further treatment, such as polishing, acid etching, anodizing, etc., to meet specific application requirements.

Chalco cold drawn aluminum tube production capacity

Detailed specification table of cold drawn aluminum round tube

Detailed specification table of cold drawn aluminum square tube

Detailed specification table of cold drawn aluminum rectangular tube

The difference between cold drawn aluminum tube and extruded aluminum tube

Cold drawn aluminum tube

Manufacturing process

Cold drawn aluminum tubes are produced by heating aluminum billets to a certain temperature and then gradually stretching them using cold drawing machinery.

This process is a cold working process used to manufacture aluminum tubes with high precision and excellent surface quality.

Properties and characteristics

Cold drawn aluminum tubes typically exhibit high dimensional accuracy and surface quality, making them suitable for applications requiring strict dimensional control.

This process can enhance the mechanical properties of aluminum materials, such as strength and hardness.

Cold drawn aluminum tubes are suitable for industries demanding high precision and high-quality products, such as aerospace and medical equipment.

Extruded aluminum tube

Manufacturing process

Extruded aluminum tubes are formed by pressing and extruding aluminum billets at high temperatures through molds to create tubular shapes.

This process is a hot working process and is suitable for producing large-diameter and very long aluminum tubes.

Properties and Characteristics

Extruded aluminum tubes are typically suitable for larger-diameter tubes, but their dimensional accuracy and surface quality may not be as high as cold drawn aluminum tubes.

The surface quality may be relatively rough, making them suitable for some general applications, such as structures and decorations.

Extruded aluminum tubes are suitable for applications requiring larger dimensions and shorter production lead times.

Quality requirements for cold drawn aluminum tubes

Mechanical properties

The strength, hardness, and other mechanical properties of cold drawn aluminum tubes should meet the technical specifications required for the intended application, typically varying depending on the material and application.

Dimensional Accuracy and Tolerances

The outer diameter, inner diameter, wall thickness, and other dimensions should meet specified tolerance requirements to ensure the desired precision.

Tolerance ranges typically vary based on the application and manufacturing standards.

Surface quality

• Cold drawn aluminum tubes, being cold-worked surfaces, should have smooth and clean inner and outer surfaces.
• Individual minor defects such as spots, pits, dents, scratches, and graphite oil prints are allowed on the surface, with their depth not exceeding the allowed negative deviation of the wall thickness.
• Surface defects that affect appearance, such as cracks, bubbles, peeling, delamination, folding, foreign inclusions, corrosion spots, etc., are not allowed.
• The surface should meet specified brightness and roughness requirements.

Cold drawn aluminum tube workability

Cold drawn aluminum tubes can undergo various processing steps such as cold drawing, polishing, cooling, aging, CNC machining, cutting, punching, drilling, milling, etc.

Cold drawn aluminum tube surface treatment

Surface treatment options for cold drawn aluminum tubes include anodizing, electrophoretic painting, fluorocarbon spraying, powder coating, wood grain transfer, printing, mechanical brushing, mechanical polishing, sandblasting, etc.

Typical anodizing film thickness is 8-12 microns.

Cold drawn aluminum tube pricing

Cold drawn aluminum tubes tend to have relatively higher prices compared to extruded aluminum tubes. Cold drawn aluminum tubes undergo multiple drawing passes after extrusion and require complex production processes, resulting in superior mechanical properties, better surface quality, and high precision, thus commanding a higher price level.Quick Quote

Cold drawn aluminum tube packaging

• Wrapped in protective film with moisture absorbent, further wrapped in hard paper sleeves, and covered with moisture-proof film, with wooden crating for reinforcement.
• Wrapped in moisture-proof film and placed directly in wooden crates, secured with steel strapping, and provided with fumigation certificates.
• Complies with GB/T3199 standard requirements.
• Custom packaging requirements can be accommodated as per customer requests.