A Complete Buying Guide to Seamless Aluminum Tubes
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A Complete Buying Guide to Seamless Aluminum Tubes

Seamless aluminum tubing is a high-performance aluminum tube that is free of welds or seams, manufactured through extrusion or cold drawing processes to ensure structural integrity and uniform quality. With exceptional strength, superior pressure resistance, excellent corrosion resistance, and a smooth surface finish, seamless aluminum tubes are widely used in aerospace, automotive industries, high-pressure hydraulic systems, and medical equipment. Quick Quote

Introduction to Seamless Aluminum Tubing

Alloy Grades: 1100, 2024, 2219, 3003, 5052, 5083, 5086, 6060, 6061, 6063, 6082, 7075

Types:| Extruded seamless tubes | Cold-drawn seamless tubes | Forged seamless tubes | SCH40 seamless pipes | SCH80 seamless pipes | Seamless aluminum bus pipes | Large-diameter seamless tubes |

Shapes:| Seamless round tubes | Seamless square tubes | Seamless rectangular tubes | Seamless elliptical tubes | Seamless streamlined tubes |

Surface Treatments:Polishing, grinding, sandblasting, anodizing, powder coating, electrophoretic coating

Deep Processing Services:Cutting, bending, tapping, welding, assembly, drilling, CNC machining, milling, punching

Specification:AMS QQ-A-200, ASTM B241, ASTM B345, WW-T-700, ASTM B-210, ASTM B234

Chalco's Major Types of Seamless Aluminum Tubes

Seamless Extruded Aluminum Tubes

Alloys: 3003, 2014, 2024, 5052, 5086, 6061, 7075

Outer Diameter:1/2” – 18”

Specifications:AMS QQ-A-200, ASTM B241, ASTM B345

View Tolerances for Extruded Seamless Aluminum Tubes

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Seamless Aluminum Tube

Extruded seamless aluminum tubes are manufactured by forcing heated aluminum billets through a die and mandrel under high pressure. This process ensures uniform material flow and produces seamless tubes with complete structural integrity. While the extrusion process is simpler and highly efficient, it is best suited for large-diameter or thick-walled aluminum tubes and may have limitations in terms of dimensional precision and surface quality.

  • Uniform wall thickness: Provides high strength for load-bearing applications.
  • Simple manufacturing process: Suitable for large diameters and thick walls, offering lower production costs.
  • Moderate precision: Ideal for applications that do not require tight tolerances or high surface quality.

Applications

  • Industrial: High-pressure vessels, structural supports
  • Energy: Natural gas and oil pipelines
  • Construction: Frames and large load-bearing structures

Cold-Drawn Seamless Aluminum Tubes

Alloys: 1100, 3003, 2024, 5052, 5086, 6061, 7075

Outer Diameter:0.5” – 12”

Specifications:WW-T-700, ASTM B-210, ASTM B234

View Tolerances for Cold-Drawn Seamless Aluminum Tubes

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Seamless Aluminum Tube

Cold-drawn seamless aluminum tubes are created by subjecting pre-extruded tube blanks to multiple drawing processes at room temperature. This process reduces the diameter and wall thickness of the tubes while enhancing their dimensional precision, surface quality, and mechanical properties. It is ideal for small-diameter, thin-walled applications requiring high performance and precision.

Key Features

  • High strength and pressure resistance: Seamless construction and uniform material distribution ensure excellent performance in high-pressure environments.
  • Precision dimensions: Strict tolerances and smooth surfaces (up to mirror finishes) make these tubes suitable for precision applications.
  • Formability: Can withstand bending and forming operations without compromising structural integrity.
  • High rigidity and crack resistance: Excellent durability under demanding conditions.
  • Impact resistance: Performs reliably in environments with vibration or impact loads.

Applications

  • Aerospace: Hydraulic lines, structural components, fuel delivery systems
  • Medical Field: Components for precision instruments and implants
  • Automotive and Rail: High-pressure fluid transfer and impact-resistant components
  • Defense Industry: Missile casings, gun barrels
  • Energy Sector: High-pressure oil and gas pipelines
  • Seamless Aluminum Tube
    Standard Cold-Drawn Seamless Tubes

    Standard cold-drawn seamless tubes, made through multiple cold-drawing processes, offer high precision, smooth surfaces, and moderate strength and toughness. With looser tolerances and lower production costs than hydraulic tubes, they are ideal for general industrial, construction, and low-pressure liquid transport applications.

    AMS 4062 AMS 4079 AMS 4080 AMS 4082 AMS 4087 AMS 4088 AMS 4066 AMS 4069 AMS 4070
  • Seamless Aluminum Tube
    Cold-Drawn Hydraulic Seamless Tubes

    Cold-drawn hydraulic seamless tubes, designed for high-pressure systems, offer superior dimensional accuracy, uniform wall thickness, and excellent mechanical properties. With strict manufacturing standards, they are used in aerospace, hydraulic equipment, and applications requiring high pressure resistance and sealing.

    AMS 4071 AMS 4081 AMS 4083 AMS 4086

Forged Seamless Aluminum Tubes

Forged seamless aluminum tubes are made by heating aluminum alloys and forming them via forging molds, eliminating welding. Suitable for large diameters and thick walls, they provide excellent strength and corrosion resistance, making them ideal for high-pressure, high-strength environments in aerospace, military, and marine engineering.

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Seamless Aluminum Tube

SCH40 Seamless Aluminum Tubes

SCH40 seamless aluminum tubes feature standard medium wall thickness, making them suitable for low to medium pressure applications. These tubes are a versatile and cost-effective choice, meeting the demands of general industrial uses and construction piping systems.

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Seamless Aluminum Tube

SCH80 Seamless Aluminum Tubes

SCH80 seamless aluminum tubes are engineered with thicker wall thickness, enabling them to withstand higher pressure and loads. They are extensively used in high-pressure gas or liquid pipelines and industrial equipment, where superior strength and compression resistance are essential. These tubes are ideal for demanding environments.

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Seamless Aluminum Tube

Seamless Aluminum Bus Pipes

Seamless aluminum bus pipes are manufactured through a seamless process, providing lighter weight, larger cross-sectional areas, and stronger load capacity compared to other bus shapes. These pipes are primarily used in power transmission, distribution systems, and industrial electrical setups.

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Seamless Aluminum Tube

Extra-Large Seamless Aluminum Tubes (Advanced Technology)

Alloys: 2024, 5083, 6061, 6063, 6082, 7075

Maximum Outer Diameter:1320mm

Maximum Wall Thickness:220mm

Maximum Length:12m

Production Method:Vertical Extrusion

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Seamless Aluminum Tube

Chalco Different Shapes of Seamless Aluminum Tubes

Seamless Aluminum Round Tube

With a circular cross-section, this tube has uniform structure and consistent strength, with a smooth surface and strict tolerance control. It is ideal for aerospace, mechanical components, high-pressure systems, precision instruments, and high-stress applications.

Seamless Aluminum Tube
Seamless Aluminum Tube

Seamless Aluminum Square Tube

Featuring a square cross-section, this tube is produced using the extrusion process, with no weld seams, ensuring uniform structure, and offering both aesthetics and strength. It is widely used in building frames, industrial equipment, and structural support where high stability is required.

Seamless Rectangular Aluminum Tube

With a rectangular cross-section, this tube provides a larger surface area and sectional inertia, making it ideal for applications with specific directional forces. It is widely used in transportation, construction machinery, and the manufacture of specialized equipment housings.

Seamless Aluminum Tube
Seamless Aluminum Tube

Seamless Oval Aluminum Tube

With an oval cross-section, this tube combines a sleek appearance, smooth surface, and streamlined design, ensuring strength and toughness. It is widely used in aerospace, automotive, and other applications where space optimization and aerodynamics are crucial.

Seamless Streamline Aluminum Tube

This tube features a streamlined cross-section, combining aesthetic appeal with aerodynamic properties. Its seamless structure ensures high strength, durability, and smooth surface, making it ideal for aerospace, automotive manufacturing, and performance-focused industries.

Seamless Aluminum Tube

Chalco Other Types of Seamless Aluminum Tubes

Seamless Aluminum Tube

Seamless Thin-Wall Aluminum Tube

Lightweight with excellent surface smoothness, these tubes are ideal for heat dissipation equipment, cosmetic parts, and lightweight structural applications.

Seamless Aluminum Tube

Seamless Thick-Wall Aluminum Tube

These tubes, with high strength and excellent pressure resistance, are widely used in high-pressure vessels, deep-sea equipment, and heavy machinery.

Seamless Aluminum Tube

Small Diameter Seamless Aluminum Tube

Commonly used in precision instruments, medical devices, and compact mechanical structures, emphasizing high precision and reliability.

Seamless Aluminum Tube

Seamless Precision Aluminum Tube

Manufactured with strict tolerances and smooth surfaces, these tubes are suitable for high-precision machining and aerospace components.

Seamless Aluminum Tube

Seamless Anodized Aluminum Tube

These tubes undergo anodizing treatment, providing a uniform appearance and enhanced corrosion resistance.

Seamless Aluminum Tube

Seamless Aluminum Coiled Tube

Produced through continuous or mandrel extrusion, these tubes offer precision, and corrosion resistance, making them ideal for air conditioning and fluid transport.

Seamless Aluminum Tube

Seamless Expandable Aluminum Tube

With high surface quality and tight tolerances, these tubes are suitable for precision fittings and telescoping structures.

Seamless Aluminum Tube

Seamless Polished Aluminum Tube

With high precision and a high surface finish, these tubes are used in environments where surface quality and dimensional tolerance are crucial.

Seamless Aluminum Tube

Custom Seamless Aluminum Tube

These tubes are tailored to specific customer requirements, offering custom dimensions and performance for unique applications.

Chalco seamless tube hot selling products

  • Seamless Aluminum Tube

    Spec: WW-T-700/6, AMS 4079, AMS 4080, AMS 4082

    Known for high strength and excellent corrosion resistance, this material is ideal for aerospace, automotive, and structural applications.

    View 6061 Seamless Tube Stock Table

  • Seamless Aluminum Tube

    Spec: ASTM B241

    With superior surface finish and corrosion resistance, this material is ideal for anodizing and widely used in architectural decoration, furniture, and light structures.

    View 6063 Seamless Tube Stock Table

  • Seamless Aluminum Tube

    Spec: WW-T-700/3, AMS 4087, AMS 4088

    It has excellent strength and fatigue resistance, and is particularly suitable for high-load scenarios such as aerospace, but its corrosion resistance is relatively poor.

    View 2024 Seamless Tube Stock Table

  • Seamless Aluminum Tube

    Spec: WW-T-700/7, AMS 4169

    With ultra-high strength, this tube is ideal for aerospace and high-strength structural applications, despite slightly lower corrosion resistance.

    View 7075 Seamless Tube Stock Table

  • Seamless Aluminum Tube

    Spec: WW-T-700/4, AMS-4069, AMS-4070, AMS-4071

    With excellent corrosion resistance and moderate strength, this material suits marine engineering, aircraft fuel lines, and chemical processing.

  • Seamless Aluminum Tube

    Spec: ASTM B210, ASTM B241

    Famous for its exceptional corrosion resistance and excellent strength, 5083 seamless aluminum tubes are the preferred choice for shipbuilding, marine facilities, and storage tanks.

  • Seamless Aluminum Tube

    Spec: WW-T-700/5, AMS 4088, AMS 4165

    Combining good strength and corrosion resistance, this tube is particularly suitable for marine industries and heavy-duty transportation equipment applications.

  • Seamless Aluminum Tube

    Spec: WW-T-700/2, AMS 4065, AMS 4067

    With excellent corrosion resistance and ductility, this tube is widely used in food processing, heat exchangers, and lightweight structures.

  • Seamless Aluminum Tube

    Spec: ASTM B210, AMS 4066, AMS 4068

    With high strength and excellent heat resistance, it is widely used in aerospace applications involving high-pressure and high-temperature environments.

  • Seamless Aluminum Tube

    Spec: WW-T-700/1, AMS 4062

    With high purity, excellent corrosion resistance, and conductivity, this tube is ideal for food processing, chemical equipment, and low-pressure transmission.

  • Seamless Aluminum Tube

    Notable for its moderate strength, good corrosion resistance, and excellent machinability, this tube is primarily used in construction, home décor, and light industrial applications.

  • Seamless Aluminum Tube

    With superior strength and excellent corrosion resistance, this material is perfect for heavy structural engineering, shipbuilding, and machinery manufacturing applications.

Advantages of Seamless Aluminum Tubes

  • Seamless Design: Eliminates weak points caused by welding, providing higher structural strength and reliability, ideal for high-pressure and dynamic environments.
  • Excellent Corrosion Resistance: Resistant to chemicals, petroleum, natural gas, and water, ensuring long-term stability under harsh conditions.
  • Superior Mechanical Properties: High strength and low elongation allow it to withstand high pressures and heavy loads while maintaining shape stability.
  • Dimensional Precision and Surface Finish: Cold drawing and fine finishing processes ensure precise tolerances and smooth surfaces, meeting high-precision requirements.
  • High Crack Resistance and Impact Resistance: Uniform material distribution enhances resistance to cracks and impacts, capable of withstanding fatigue failure and severe vibrations.
  • Symmetry and Aesthetic Appearance: Uniform shape and excellent anodizing performance make it suitable for high-end applications requiring an attractive appearance.

Applications of Seamless Aluminum Tubes

Seamless Aluminum Tubes for Aerospace

Alloys: 5052, 5083, 2024

Aircraft fuel delivery pipes

High-pressure hydraulic pipelines

Navigation system brackets and structural components

Seamless Aluminum Tube
Seamless Aluminum Tube

Seamless Aluminum Tubes for Automotive

Alloys:3003, 3003/4045

Cooling system pipes for car engines

Radiator pipes for automotive air conditioning systems

Fuel delivery pipes for vehicles

Seamless Aluminum Tubes for Medical

Pipes for high-precision medical instruments

Medical gas transport pipelines

Casings and supports for implantable devices

Seamless Aluminum Tube
Seamless Aluminum Tube

Seamless Aluminum Tubes for Oil and Gas

High-pressure oil and gas pipelines

Fluid transport pipes for oil field facilities

Offshore pipelines for oil and gas extraction platforms

Seamless Aluminum Tubes for Electronics and Electrical

Pipes for power transmission and cable protection

Cooling pipes for electrical equipment

Pipes and supports for solar power systems

Seamless Aluminum Tube
Seamless Aluminum Tube

Large-Diameter Seamless Alum Tubes for Energy Industry

Cooling water pipes for nuclear power plants

Steam transport pipes for thermal power plants

Pipes and supports for wind power facilities

Seamless Alum Tubes for Refrigeration and Air Conditioning

Condenser pipes for air conditioning systems

Evaporator pipes for refrigerators and freezing equipment

Liquid transport pipes for commercial refrigeration systems

Seamless Aluminum Tube

Production Process of Seamless Aluminum Tubes

Direct Extrusion Process

Direct extrusion is the most traditional extrusion method. The heated aluminum billet is loaded into the extrusion cylinder, and pressure is applied by pushing the punch, forcing the aluminum billet to flow through a fixed mold and mandrel to form seamless tubes.

In this process, significant friction occurs between the aluminum billet and the extrusion cylinder, which increases extrusion resistance, requiring higher pressure and extrusion temperatures to complete the process. After extrusion, the resulting aluminum tube typically requires further processing, such as cutting, heat treatment, or machining, to meet specific size and performance requirements.

Features

  • Suitable for the production of large diameter or thick-walled aluminum tubes, providing high structural strength.
  • The process is relatively simple, making it ideal for mass production; however, due to friction, material utilization is relatively low.
  • The extrusion speed is slower, typically used for manufacturing large pressure vessels, structural components, or general industrial tubing.

Indirect Extrusion Process

Indirect extrusion is a process designed to improve extrusion efficiency by reducing friction. Unlike direct extrusion, the extrusion cylinder and aluminum billet move towards the mold together, while the punch remains stationary.

This design avoids friction between the aluminum billet and the inner wall of the extrusion cylinder, allowing the aluminum billet to be extruded at lower temperatures and pressures. This process is especially suitable for high-strength or corrosion-resistant aluminum alloys that are difficult to extrude. Indirect extrusion also provides better control over the uniformity of tube dimensions, particularly in wall thickness consistency.

Features

  • Reduces friction, lowers extrusion temperature, and reduces equipment wear, thus improving material utilization.
  • Suitable for producing high-performance, medium to small diameter seamless tubes, ideal for aerospace and high-end industrial applications.
  • Provides higher dimensional precision and surface quality, especially for applications requiring strict tolerances.

Cold Drawing Process

The cold drawing process is used to further process extruded parent tubes, especially for producing small diameter or thin-walled seamless tubes. After annealing the extruded parent tube, it is pulled through progressively smaller molds using a drawing machine, gradually reducing its outer diameter and wall thickness to the required design specifications.

During the cold drawing process, the grain structure of the aluminum tube is compressed and stretched, significantly enhancing the mechanical properties, including strength and fatigue resistance. Typically, multiple drawing passes and intermediate annealing steps are required to ensure the final product has high precision, superior surface finish, and uniform wall thickness.

Features

  • Dimensional control precision is extremely high, with tolerance ranges typically at the micron level.
  • Suitable for small diameter, thin-walled aluminum tubes and precision tubing production.
  • Significantly improves mechanical properties, making it ideal for high-pressure fluid transmission, aerospace hydraulic systems, and medical instruments.

Seamless Aluminum Tube Stock

6061 Seamless Aluminum Tube Stock Size Table

Spec: WW-T-700/6, AMS 4079, AMS 4080, AMS 4082

Alloy Temper OD*WA/mm Alloy Temper OD*WA/mm
6061-T6 Seamless aluminum pipe 120*40 6061-T6 Seamless aluminum pipe 370*50
6061-T6 Seamless aluminum pipe 130*40 6061-T6 Seamless aluminum pipe 380*30
6061-T6 Seamless aluminum pipe 140*40 6061-T6 Seamless aluminum pipe 380*40
6061-T6 Seamless aluminum pipe 150*40 6061-T6 Seamless aluminum pipe 380*50
6061-T6 Seamless aluminum pipe 150*50 6061-T6 Seamless aluminum pipe 390*30
6061-T6 Seamless aluminum pipe 160*40 6061-T6 Seamless aluminum pipe 390*40
6061-T6 Seamless aluminum pipe 160*50 6061-T6 Seamless aluminum pipe 390*50
6061-T6 Seamless aluminum pipe 170*40 6061-T6 Seamless aluminum pipe 400*100
6061-T6 Seamless aluminum pipe 170*50 6061-T6 Seamless aluminum pipe 400*30
6061-T6 Seamless aluminum pipe 180*40 6061-T6 Seamless aluminum pipe 400*40
6061-T6 Seamless aluminum pipe 180*50 6061-T6 Seamless aluminum pipe 400*50
6061-T6 Seamless aluminum pipe 190*30 6061-T6 Seamless aluminum pipe 410*30
6061-T6 Seamless aluminum pipe 190*40 6061-T6 Seamless aluminum pipe 410*40
6061-T6 Seamless aluminum pipe 190*50 6061-T6 Seamless aluminum pipe 410*50
6061-T6 Seamless aluminum pipe 200*40 6061-T6 Seamless aluminum pipe 420*30
6061-T6 Seamless aluminum pipe 200*50 6061-T6 Seamless aluminum pipe 420*40
6061-T6 Seamless aluminum pipe 210*30 6061-T6 Seamless aluminum pipe 420*50
6061-T6 Seamless aluminum pipe 210*40 6061-T6 Seamless aluminum pipe 430*30
6061-T6 Seamless aluminum pipe 210*50 6061-T6 Seamless aluminum pipe 430*40
6061-T6 Seamless aluminum pipe 220*40 6061-T6 Seamless aluminum pipe 430*50
6061-T6 Seamless aluminum pipe 220*50 6061-T6 Seamless aluminum pipe 440*30
6061-T6 Seamless aluminum pipe 220*60 6061-T6 Seamless aluminum pipe 440*40
6061-T6 Seamless aluminum pipe 230*30 6061-T6 Seamless aluminum pipe 440*50
6061-T6 Seamless aluminum pipe 230*40 6061-T6 Seamless aluminum pipe 450*30
6061-T6 Seamless aluminum pipe 230*50 6061-T6 Seamless aluminum pipe 450*40
6061-T6 Seamless aluminum pipe 230*60 6061-T6 Seamless aluminum pipe 450*50
6061-T6 Seamless aluminum pipe 240*20 6061-T6 Seamless aluminum pipe 450*60
6061-T6 Seamless aluminum pipe 240*30 6061-T6 Seamless aluminum pipe 460*30
6061-T6 Seamless aluminum pipe 240*40 6061-T6 Seamless aluminum pipe 460*40
6061-T6 Seamless aluminum pipe 240*50 6061-T6 Seamless aluminum pipe 460*50
6061-T6 Seamless aluminum pipe 250*25 6061-T6 Seamless aluminum pipe 470*30
6061-T6 Seamless aluminum pipe 250*40 6061-T6 Seamless aluminum pipe 470*40
6061-T6 Seamless aluminum pipe 250*50 6061-T6 Seamless aluminum pipe 470*50
6061-T6 Seamless aluminum pipe 260*20 6061-T6 Seamless aluminum pipe 480*30
6061-T6 Seamless aluminum pipe 260*40 6061-T6 Seamless aluminum pipe 480*40
6061-T6 Seamless aluminum pipe 260*50 6061-T6 Seamless aluminum pipe 480*50
6061-T6 Seamless aluminum pipe 270*20 6061-T6 Seamless aluminum pipe 490*30
6061-T6 Seamless aluminum pipe 270*30 6061-T6 Seamless aluminum pipe 490*40
6061-T6 Seamless aluminum pipe 270*40 6061-T6 Seamless aluminum pipe 490*50
6061-T6 Seamless aluminum pipe 270*50 6061-T6 Seamless aluminum pipe 500*100
6061-T6 Seamless aluminum pipe 280*20 6061-T6 Seamless aluminum pipe 500*30
6061-T6 Seamless aluminum pipe 280*40 6061-T6 Seamless aluminum pipe 500*40
6061-T6 Seamless aluminum pipe 280*50 6061-T6 Seamless aluminum pipe 500*50
6061-T6 Seamless aluminum pipe 290*30 6061-T6 Seamless aluminum pipe 510*30
6061-T6 Seamless aluminum pipe 290*40 6061-T6 Seamless aluminum pipe 510*40
6061-T6 Seamless aluminum pipe 290*50 6061-T6 Seamless aluminum pipe 510*50
6061-T6 Seamless aluminum pipe 290*60 6061-T6 Seamless aluminum pipe 520*30
6061-T6 Seamless aluminum pipe 300*100 6061-T6 Seamless aluminum pipe 520*40
6061-T6 Seamless aluminum pipe 300*40 6061-T6 Seamless aluminum pipe 520*50
6061-T6 Seamless aluminum pipe 300*50 6061-T6 Seamless aluminum pipe 530*30
6061-T6 Seamless aluminum pipe 310*30 6061-T6 Seamless aluminum pipe 530*40
6061-T6 Seamless aluminum pipe 310*40 6061-T6 Seamless aluminum pipe 530*50
6061-T6 Seamless aluminum pipe 310*50 6061-T6 Seamless aluminum pipe 540*30
6061-T6 Seamless aluminum pipe 320*30 6061-T6 Seamless aluminum pipe 540*40
6061-T6 Seamless aluminum pipe 320*40 6061-T6 Seamless aluminum pipe 540*50
6061-T6 Seamless aluminum pipe 320*50 6061-T6 Seamless aluminum pipe 550*30
6061-T6 Seamless aluminum pipe 330*30 6061-T6 Seamless aluminum pipe 550*40
6061-T6 Seamless aluminum pipe 330*40 6061-T6 Seamless aluminum pipe 550*50
6061-T6 Seamless aluminum pipe 330*50 6061-T6 Seamless aluminum pipe 560*30
6061-T6 Seamless aluminum pipe 340*30 6061-T6 Seamless aluminum pipe 560*40
6061-T6 Seamless aluminum pipe 340*40 6061-T6 Seamless aluminum pipe 560*50
6061-T6 Seamless aluminum pipe 340*50 6061-T6 Seamless aluminum pipe 570*30
6061-T6 Seamless aluminum pipe 340*60 6061-T6 Seamless aluminum pipe 570*40
6061-T6 Seamless aluminum pipe 350*30 6061-T6 Seamless aluminum pipe 570*50
6061-T6 Seamless aluminum pipe 350*40 6061-T6 Seamless aluminum pipe 580*30
6061-T6 Seamless aluminum pipe 350*50 6061-T6 Seamless aluminum pipe 580*40
6061-T6 Seamless aluminum pipe 350*60 6061-T6 Seamless aluminum pipe 580*50
6061-T6 Seamless aluminum pipe 360*30 6061-T6 Seamless aluminum pipe 590*30
6061-T6 Seamless aluminum pipe 360*40 6061-T6 Seamless aluminum pipe 590*40
6061-T6 Seamless aluminum pipe 360*50 6061-T6 Seamless aluminum pipe 590*50
6061-T6 Seamless aluminum pipe 360*60 6061-T6 Seamless aluminum pipe 600*30
6061-T6 Seamless aluminum pipe 370*30 6061-T6 Seamless aluminum pipe 600*40
6061-T6 Seamless aluminum pipe 370*40 6061-T6 Seamless aluminum pipe 600*50

6063 Seamless Aluminum Tube Stock Size Table

Spec: ASTM B241

Alloy Temper OD*WA/mm Alloy Temper OD*WA/mm
6063-T5 Seamless aluminum pipe 6*1 6063-T5 Seamless aluminum pipe 50*4
6063-T5 Seamless aluminum pipe 7*1 6063-T5 Seamless aluminum pipe 55*2
6063-T5 Seamless aluminum pipe 8*1 6063-T5 Seamless aluminum pipe 55*15
6063-T5 Seamless aluminum pipe 8*2 6063-T5 Seamless aluminum pipe 60*4
6063-T5 Seamless aluminum pipe 10*1 6063-T5 Seamless aluminum pipe 65*3
6063-T5 Seamless aluminum pipe 10*2 6063-T5 Seamless aluminum pipe 70*4
6063-T5 Seamless aluminum pipe 12*1 6063-T5 Seamless aluminum pipe 75*2
6063-T5 Seamless aluminum pipe 12*2 6063-T5 Seamless aluminum pipe 80*2
6063-T5 Seamless aluminum pipe 15*1 6063-T5 Seamless aluminum pipe 80*4
6063-T5 Seamless aluminum pipe 15*2 6063-T5 Seamless aluminum pipe 85*3
6063-T5 Seamless aluminum pipe 15*3 6063-T5 Seamless aluminum pipe 90*2
6063-T5 Seamless aluminum pipe 18*1 6063-T5 Seamless aluminum pipe 90*5
6063-T5 Seamless aluminum pipe 18*5 6063-T5 Seamless aluminum pipe 95*5
6063-T5 Seamless aluminum pipe 20*1 6063-T5 Seamless aluminum pipe 100*5
6063-T5 Seamless aluminum pipe 20*4 6063-T5 Seamless aluminum pipe 102*5
6063-T5 Seamless aluminum pipe 22*1 6063-T5 Seamless aluminum pipe 105*5
6063-T5 Seamless aluminum pipe 22*4 6063-T5 Seamless aluminum pipe 108*3
6063-T5 Seamless aluminum pipe 24*1 6063-T5 Seamless aluminum pipe 110*5
6063-T5 Seamless aluminum pipe 24*4 6063-T5 Seamless aluminum pipe 115*5
6063-T5 Seamless aluminum pipe 25*1 6063-T5 Seamless aluminum pipe 120*5
6063-T5 Seamless aluminum pipe 25*4 6063-T5 Seamless aluminum pipe 125*5
6063-T5 Seamless aluminum pipe 28*1 6063-T5 Seamless aluminum pipe 130*5
6063-T5 Seamless aluminum pipe 28*4 6063-T5 Seamless aluminum pipe 135*5
6063-T5 Seamless aluminum pipe 30*1 6063-T5 Seamless aluminum pipe 140*5
6063-T5 Seamless aluminum pipe 30*4 6063-T5 Seamless aluminum pipe 150*5
6063-T5 Seamless aluminum pipe 32*1 6063-T5 Seamless aluminum pipe 160*5
6063-T5 Seamless aluminum pipe 35*1 6063-T5 Seamless aluminum pipe 170*5
6063-T5 Seamless aluminum pipe 35*4 6063-T5 Seamless aluminum pipe 180*5
6063-T5 Seamless aluminum pipe 38*1 6063-T5 Seamless aluminum pipe 190*5
6063-T5 Seamless aluminum pipe 38*4 6063-T5 Seamless aluminum pipe 200*5
6063-T5 Seamless aluminum pipe 40*1 6063-T5 Seamless aluminum pipe 213*6
6063-T5 Seamless aluminum pipe 40*4 6063-T5 Seamless aluminum pipe 230*5
6063-T5 Seamless aluminum pipe 42*4 6063-T5 Seamless aluminum pipe 240*5
6063-T5 Seamless aluminum pipe 45*1 6063-T5 Seamless aluminum pipe 250*5
6063-T5 Seamless aluminum pipe 45*4 6063-T5 Seamless aluminum pipe 300*6
6063-T5 Seamless aluminum pipe 48*4 6063-T5 Seamless aluminum pipe 313*6
6063-T5 Seamless aluminum pipe 50*1 6063-T5 Seamless aluminum pipe 332*6

2024 Seamless Aluminum Tube Stock Size Table

Spec: WW-T-700/3, AMS 4087, AMS 4088

Description OD/mm WA/mm Description OD/mm WA/mm
2024-T4 seamless tube 30 5 2024-T4 seamless tube 65 5
2024-T4 seamless tube 35 5 2024-T4 seamless tube 65 10
2024-T4 seamless tube 38 4 2024-T4 seamless tube 65 15
2024-T4 seamless tube 40 5 2024-T4 seamless tube 70 5
2024-T4 seamless tube 50 5 2024-T4 seamless tube 70 15
2024-T4 seamless tube 50 10 2024-T4 seamless tube 75 5
2024-T4 seamless tube 50 15 2024-T4 seamless tube 75 10
2024-T4 seamless tube 55 5 2024-T4 seamless tube 75 15
2024-T4 seamless tube 55 10 2024-T4 seamless tube 80 5
2024-T4 seamless tube 55 15 2024-T4 seamless tube 80 10
2024-T4 seamless tube 60 10 2024-T4 seamless tube 80 15
2024-T4 seamless tube 60 15 2024-T4 seamless tube 200 30

7075 Seamless Aluminum Tube Stock Size Table

Spec: WW-T-700/7, AMS 4169

Description OD/in Wall/in
0.197(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.197 0.039
0.236(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.236 0.039
0.276(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.276 0.039
0.315(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.315 0.039
0.315(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.315 0.079
0.354(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.354 0.039
0.394(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.394 0.039
0.394(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.394 0.079
0.433(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.433 0.039
0.472(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.472 0.039
0.472(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.472 0.079
0.472(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 0.472 0.118
0.512(OD)*0.059(WA) 7075-T6 cold drawn seamless tube 0.512 0.059
0.512(OD)*0.138(WA) 7075-T6 cold drawn seamless tube 0.512 0.138
0.551(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.551 0.039
0.551(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.551 0.079
0.551(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 0.551 0.118
0.591(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.591 0.039
0.591(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.591 0.079
0.63(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.63 0.039
0.63(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.63 0.079
0.63(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 0.63 0.118
0.63(OD)*0.157(WA) 7075-T6 cold drawn seamless tube 0.63 0.157
0.669(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.669 0.039
0.669(OD)*0.098(WA) 7075-T6 cold drawn seamless tube 0.669 0.098
0.709(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.709 0.039
0.709(OD)*0.157(WA) 7075-T6 cold drawn seamless tube 0.709 0.157
0.748(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.748 0.039
0.748(OD)*0.059(WA) 7075-T6 cold drawn seamless tube 0.748 0.059
0.748(OD)*0.098(WA) 7075-T6 cold drawn seamless tube 0.748 0.098
0.787(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.787 0.039
0.787(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.787 0.079
0.787(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 0.787 0.118
0.787(OD)*0.157(WA) 7075-T6 cold drawn seamless tube 0.787 0.157
0.866(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.866 0.039
0.866(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.866 0.079
0.866(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 0.866 0.118
0.906(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.906 0.039
0.906(OD)*0.059(WA) 7075-T6 cold drawn seamless tube 0.906 0.059
0.945(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.945 0.039
0.945(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.945 0.079
0.945(OD)*0.157(WA) 7075-T6 cold drawn seamless tube 0.945 0.157
0.984(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 0.984 0.039
0.984(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 0.984 0.079
0.984(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 0.984 0.118
0.984(OD)*0.157(WA) 7075-T6 cold drawn seamless tube 0.984 0.157
1.024(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 1.024 0.079
1.024(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 1.024 0.118
1.063(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 1.063 0.079
1.063(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 1.063 0.118
1.102(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 1.102 0.079
1.181(OD)*0.039(WA) 7075-T6 cold drawn seamless tube 1.181 0.039
1.181(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 1.181 0.079
1.181(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 1.181 0.118
1.22(OD)*0.138(WA) 7075-T6 cold drawn seamless tube 1.22 0.138
1.26(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 1.26 0.079
1.26(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 1.26 0.118
1.378(OD)*0.157(WA) 7075-T6 cold drawn seamless tube 1.378 0.157
1.417(OD)*0.079(WA) 7075-T6 cold drawn seamless tube 1.417 0.079
1.417(OD)*0.118(WA) 7075-T6 cold drawn seamless tube 1.417 0.118

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Seamless Extruded Aluminum Tube Tolerances

Seamless Extruded Aluminum Round Tubes

Seamless Extruded Round Tubing Diameter Tolerances
Specified Diameter Inches Deviation Of Mean From Specified* Maximum Deviation At Any Point From Specified
Inches - Plus and Minus Inches - Plus and Minus
Alloys 5083 5086 5454 All Other Alloys Alloys 5083 5086 5454 All Other Alloys
0.500 - 0.999 0.015 0.01 0.03 0.02
1.000 - 1.999 0.018 0.012 0.038 0.025
2.000 - 3.999 0.023 0.015 0.045 0.03
4.000 - 5.999 0.038 0.025 0.075 0.05
6.000 - 7.999 0.053 0.035 0.113 0.075
8.000 - 9.999 0.068 0.045 0.15 0.1
10.000 - 11.999 0.083 0.055 0.188 0.125
12.000 - 13.999 0.098 0.065 0.225 0.15
14.000 - 15.999 0.113 0.075 0.263 0.175
16.000 - 17.999 0.128 0.085 0.3 0.2
*Except for T3510, T4510, T6510 and T8510 tempers. †Not applicable in the annealed (0) temper or if wall thicknesa ia lean than 21/2% of the OD.
Seamless Extruded Round Tubing Wall Thickness Tolerances
Specified Wall Thickness Inches Deviation Of Mean From Specified Maximum Deviation At Any Point
Under 1.250 OD 1.250-2.999 OD 3.000-4.999 OD 5.000 & Over
Alloys 5083 5086 5456 All Other Alloys Alloys 5083 5086 5456 All Other Alloys Alloys 5083 5086 5456 All Other Alloys Alloys 5083 5086 5456 All Other Alloys All Alloys
Under 0.047 0.009 0.006 - - - - - - Plus and Minus 10% of mean thickness
0.047 - 0.061 0.011 0.007 0.012 0.008 0.012 0.008 0.015 0.01 Max. ±.060
0.062 - 0.077 0.012 0.008 0.012 0.008 0.014 0.009 0.018 0.012 Min. ±.010
0.078 - 0.124 0.014 0.009 0.014 0.009 0.015 0.01 0.023 0.015
0.125 - 0.249 0.014 0.009 0.014 0.009 0.02 0.013 0.03 0.02
0.250 - 0.374 0.017 0.011 0.017 0.011 0.024 0.016 0.038 0.025
0.375 - 0.499 - - 0.023 0.015 0.032 0.021 0.053 0.035
0.500 - 0.749 - - 0.03 0.02 0.042 0.028 0.068 0.045
0.750 - 0.999 - - - - 0.053 0.035 0.083 0.055
1.000 - 1.499 - - - - 0.068 0.045 0.098 0.065
1.500 - 2.000 - - - - - - 0.113 0.075

Seamless Extruded Aluminum Square Tube

Seamless Extruded Square & Rectangular Tubing Diameter (Width or Depth) Tolerances
Specified Width or Depth Inches Deviation of Width or Depth at Corners From Specified* Deviation of Width or Depth Not At Corners From Specified†
Inches - Plus and Minus Inches - Plus and Minus
Alloys 5083 5086 5454 All Other Alloys Alloys 5083 5086 5454 All Other Alloys
0.500 - 0.749 0.018 0.012 0.03 0.02
0.750 - 0.999 0.021 0.014 0.03 0.02
1.000 - 1.999 0.027 0.018 0.038 0.025
2.000 - 3.999 0.038 0.025 0.053 0.035
4.000 - 4.999 0.053 0.035 0.068 0.045
5.000 - 5.999 0.068 0.045 0.083 0.055
6.000 - 6.999 0.083 0.055 0.098 0.065
7.000 - 7.999 0.098 0.065 0.108 0.075
8.000 - 8.999 0.113 0.075 0.123 0.085
9.000 - 9.999 0.128 0.085 0.143 0.095
10.000 - 10.999 0.143 0.095 0.158 0.105
11.000 - 12.000 0.158 0.105 0.173 0.115
*Except for T3510, T4510, T6510, and 18510 tempers. †Not applicable in the annealed (0) temper or if wall thickness is less than 2 1/2% of the OD.

Drawn Seamless Aluminum Tube Tolerances

Drawn Seamless Aluminum Round Tube

Seamless Drawn Round Tubing Diameter Tolerances
Specified Diameter Inches Deviation Of Mean From Specified Maximum Deviation At Any Point From Specified
Inches - Plus and Minus Inches - Plus and Minus
All Alloys Alloys 1100 5052 3003 5086 Alloys 2014 6061 2024 6063 7075
Less Than 0.500 0.003 0.003 0.006
0.501 - 1.000 0.004 0.004 0.008
1.001 - 2.000 0.005 0.005 0.01
2.000 - 3.000 0.006 0.006 0.012
3.001 - 5.000 0.008 0.008 0.016
5.001 - 6.000 0.01 0.01 0.02
6.001 - 8.000 0.015 0.015 0.03
8.001 - 10.000 0.025 0.02 0.04
10.001 - 12.000 0.025 0.025 0.05
Seamless Drawn Round Tubing Wall Thickness Tolerances
Specified Wall Thickness, Inches Tolerance - Inches, Plus And Minus
Deviation of Mean From Specified Max Deviation At Any Point
1100, 3033 5052, 5086 2024, 6061 6063, 7075
0.010 - 0.035 0.002 0.002 Plus and minus 10% of specified wall thickness. mm. ± 0.003
0.036 - 0.049 0.003 0.003
0.050 - 0.083 0.004 0.004
0.084 - 0.120 0.005 0.006
0.121 - 0.203 0.006 0.008
0.204 - 0.300 0.008 0.012
0.301 - 0.375 0.015 0.02
0.376 - 0.500 0.02 0.03
Seamless Drawn Round Tubing Straightness*
Specified Outside Diameter Or Width Allowable Deviation From Straight, Inches
In Each Foot Of Length In Total Length Of Piece
Under 0.375 0.5 .500 x length, ft
0.375 - 5.999 0.01 .010 x length, ft
6.000 & larger 0.02 .020 x length, ft
Not applicable to annealed (-0) temper tube. Not applicable to lengths under 10 feet.
Seamless Drawn Round Tubing Corner Radii
Specified Radius Allowable Deviation From Specified Inches
Sharp corners ±1/64
Under 0.188 ±1/64
0.188 and over ±10%

Drawn Seamless Aluminum Square Tube

Seamless Drawn Square & Rectangular Tubing Diameter (Width or Depth) Tolerances
Specified Width or Depth Inches Deviation of Width or Depth at Corners From Specified* Deviation of Width or Depth Not At Corners From Specified
Inches - Plus and Minus Inches - Plus and Minus
All Alloys All Alloys
Less Than 0.500 0.003 0.006
0.501 - 1.000 0.004 0.008
1.001 - 2.000 0.005 0.01
2.001 - 3.000 0.006 0.012
3.001 - 5.000 0.008 0.016
5.001 - 6.000 0.01 0.02
6.001 - 8.000 0.015 0.03
8.001 - 10.000 0.025 0.04
10.001 - 12.000 0.025 0.05
*Example: The width tolerance of a 1x3 inch rectangle is plus and minus .008 inch and the depth tolerance is plus and minus .012 inch. See notes under round extruded.
Seamless Drawn Square & Rectangular Tubing Wall Thickness Tolerances
Specified Wall Thickness, Inches Tolerance - Inches, Plus And Minus
Deviation of Mean From Specified Max Deviation At Any Point
1100, 3033 5052, 5086 2024, 6061 6063, 7075
0.010 - 0.035 0.002 0.002 Plus and minus 10% of specified wall thickness. mm. ± 0.003
0.036 - 0.049 0.003 0.003
0.050 - 0.083 0.004 0.004
0.084 - 0.120 0.005 0.006
0.121 - 0.203 0.006 0.008
0.204 - 0.300 0.008 0.012
0.301 - 0.375 0.015 0.02
0.376 - 0.500 0.02 0.03

Seamless Aluminum Tubes vs. Welded Aluminum Tubes

The main difference between seamless aluminum tubes and welded aluminum tubes lies in the manufacturing process and performance.

Seamless aluminum tubes are produced by extrusion processes, without weld seams, offering superior pressure resistance, uniform structure, and excellent bending resistance, making them suitable for high-strength and high-precision fluid pipelines and machining applications.

On the other hand, welded aluminum tubes are formed through extrusion and welding, offering lower cost and suitability for applications that do not require high pressure or precision, such as structural support and decorative applications. However, the weld seam may become a weak point, affecting durability and appearance.

For a more in-depth comparison, click here to learn more about seamless aluminum tubes vs. welded aluminum tubes.

Seamless Aluminum Tube Purchasing Guide

As a high-performance material, seamless aluminum tubes are widely used in aerospace, industrial equipment, automotive manufacturing, and more. When purchasing seamless aluminum tubes, consider the following professional recommendations:

1. Clarify Requirements and Application Scenarios

  • Usage Classification: Determine the primary use of the aluminum tube, such as pressure pipes, structural supports, or high-precision machining.
  • Specification Requirements: Confirm the required diameter, wall thickness, length, and shape (round tube, square tube, rectangular tube, or custom shapes).
  • Industry Standards: Ensure the selected product meets relevant international standards, such as ASTM B221, EN 755, or AMS specifications, to meet industry requirements.

2. Choose the Right Alloy Material

  • 6061: High strength and corrosion resistance, suitable for industrial and mechanical applications.
  • 6063: Excellent surface treatment capability, commonly used in building decoration and electrical systems.
  • 2024/7075: Ultra-high strength, ideal for aerospace applications.
  • 5083/5052: Excellent corrosion resistance, suitable for marine engineering and chemical equipment.

3. Pay Attention to Manufacturing Processes and Precision

  • Manufacturing Process: Cold-drawn seamless aluminum tubes are suitable for high-precision, small-diameter tubes, offering better surface quality and tight tolerances; extruded seamless tubes are more cost-effective, ideal for large diameter, thick-walled, or general precision requirements.
  • Surface Treatment: Choose anodizing, electrophoretic coating, or sandblasting based on needs to improve durability and aesthetics.

4. Verify Supplier Qualifications

  • Quality Control: Prioritize suppliers with international quality management system certifications (ISO 9001 or AS9100); ensure the products meet industry standards (such as ASTM B241, ASTM B210, EN 754-8) and provide material performance testing reports.
  • Technical Capabilities: Prefer manufacturers with reverse extrusion equipment to ensure the product better meets high-end application needs; select suppliers that can provide customization services to meet specific project requirements.

5. Consider Logistics and Delivery Cycles

For bulk orders, confirm the supplier's stock and delivery capacity in advance to avoid production delays.

Inquire about delivery timeframes, packaging methods, and whether technical support is provided, especially for customized products' post-delivery maintenance and service capabilities.

Understand transportation protection measures to ensure the aluminum tubes are not damaged during transit.

Frequently Asked Questions

Can you customize non-standard sizes?

Yes, most professional suppliers offer customization services, including special specifications, different alloy series, and unique surface treatments.

Do you have a minimum order quantity?

For stock products, individual pieces can be sold; for custom production, the minimum order quantity is typically 500 kg.

What is the typical delivery time?

The delivery cycle for standard orders is typically 4-6 weeks, depending on production processes and order quantity. For stock products, delivery can be completed in 3 days for customs clearance.

Where is your production facility located?

We are a seamless aluminum tube manufacturer based in China, equipped with advanced production facilities and a strict quality control system. We provide various specifications, alloys, and surface treatments to meet the diverse needs of our customers.

Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.

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