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6061 Aluminum Square Tube

6061 aluminum square tube is a type of aluminum profile made from 6061 aluminum alloy, widely used in various fields, especially in aerospace, marine, electronics, machinery, and structural engineering. The main features of this aluminum square tube include its excellent strength, corrosion resistance, superb machinability, and good weldability, making it suitable for applications that require high strength and stability.

6061 aluminum alloy has a good strength-to-weight ratio, making it highly applicable in load-bearing structures and aerospace fields, especially for designs that require high strength while minimizing weight.

6061 Aluminum Square Tube

6061 Aluminum Square Tube Corrosion Resistance

6061 aluminum alloy exhibits excellent corrosion resistance, especially in humid and marine environments. After anodizing, its surface corrosion resistance is further enhanced, allowing it to resist corrosion in both acidic and alkaline environments. This makes 6061 aluminum square tube widely used in marine, chemical, and transportation industries.

6061 Aluminum Square Tube Heat Treatment and States

The common heat treatment states for 6061 aluminum square tube include T6, T651, and T4, with the T6 state being the most widely used due to its high strength. Through artificial aging treatment, the strength and hardness of the 6061 aluminum square tube are greatly improved. In the T6 state, it offers excellent corrosion resistance and mechanical properties, making it suitable for applications requiring high strength and durability.

6061 Aluminum Square Tube Machinability and Weldability

6061 aluminum alloy not only has good machinability but also excellent weldability. It can be welded using common methods such as TIG and MIG welding, resulting in strong and uniform weld joints. This weldability makes 6061 aluminum square tube widely used in various structural and assembly processes.

Additionally, 6061 aluminum square tube can be processed using conventional machining techniques such as cutting, drilling, milling, and turning, adapting to different manufacturing needs.

6061 Aluminum Square Tube Applications

  • Aerospace: 6061 aluminum square tube is commonly used in aerospace structural components, such as aircraft frames, supports, conduits, wings, and fuselage, as it offers excellent strength and corrosion resistance, ensuring stable performance in extreme environments.
  • Automotive Industry: 6061 aluminum square tube is widely used in automotive frames, bodies, chassis supports, and the undercarriage and suspension systems of sports cars, helping to reduce vehicle weight and improve fuel efficiency.
  • Construction and Structural Engineering: It is used in frameworks for buildings and structural projects, including fences, scaffolding, and supports, providing long-lasting reliability in most environments due to its high strength, corrosion resistance, and ease of processing.
  • Marine and Shipbuilding: In marine environments, 6061 aluminum square tube is extensively used in ship structures, platforms, and waterfront facilities due to its exceptional resistance to saltwater corrosion.
  • Machinery and Electronics: Used for manufacturing various mechanical structures and precision equipment, especially for device enclosures, frames, and supports that require high strength and excellent weldability.
  • Decoration and Furniture: Due to its good appearance and corrosion resistance, 6061 aluminum square tube is also used in building decoration, furniture manufacturing, window frames, and other applications.

6061 Aluminum Square Tube Processing Methods

  • Extrusion: The aluminum alloy material is formed into square tube profiles through the hot extrusion process, suitable for mass production.
  • Cutting and Machining: 6061 aluminum square tube can be cut, drilled, milled, and processed using common machining methods.
  • Anodizing: To enhance its surface corrosion resistance and decorative properties, 6061 aluminum square tube is often anodized, creating a hard, wear-resistant oxide layer.

6061 Aluminum Square Tube Advantages

  • High Strength and Durability: It has good tensile strength and yield strength, capable of withstanding significant loads.
  • Excellent Corrosion Resistance: It adapts to various harsh environments, including marine and chemical settings.
  • Superb Machinability: It is easy to process, cut, and weld, accommodating a wide range of production needs.
  • Good Weldability: Suitable for various welding methods, ensuring the stability of the structure.
  • Lightweight: Lighter than many other metals, making it ideal for applications where weight reduction is important.

Chemical composition of 6061 aluminum alloy

6061 Alloy %
Si 0.40-0.80
Fe 0.70
Cu 0.150.40
Mn 0.15
Mg 0.80-1.20
Cr 0.04-0.35
Ni -
Zn 0.25
Ti 0.15
Al Remainder

6061 aluminum square tube mechanical properties

Density 2.7 g/cm³
Ultimate tensile strength 310 MPa
Yield tensile strength 276 MPa
Fatigue strength 96.5 MPa
Shear strength 207 MPa
Melting point 582 – 652℃

The 6061 aluminum square tube, with its excellent performance, durability, and machinability, is widely used in fields such as aerospace, automotive, machinery manufacturing, construction, electronics, and marine. Its outstanding strength-to-weight ratio, superior corrosion resistance, and good machinability make it an ideal material for structural components and frame construction.

6061 Aluminum Square Tube Stock List

Description Alloy Temper Processing method Profile Shape
0.75" x 0.062" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1" x 0.065" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1.25" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1.5" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1.5" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1.5" x 0.1875" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1.5" x 0.062" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1.75" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
2" x 0.1875" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
2" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
2" x 0.062" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
2" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
2.5" x 0.1875" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
2.5" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
2.5" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
3" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
3" x 0.1875" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
3" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
3.5" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
4" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
4" x 0.125" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
4" x 0.1875" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
4" x 0.375" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
4" x 0.5" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
5" x 0.188" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
5" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
6" x 0.1875" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
6" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
6" x 0.375" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
6" x 0.5" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
8" x 0.25" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
8" x 0.375" Aluminum Square Tube 6061-T6-Extruded 6061 T6 Extruded square tube
1" x 0.125" Aluminum Square Tube 6061-T6 288" Length 6061 T6 square tube
1.5" x 0.125" Aluminum Square Tube 6061-T6 288" Length 6061 T6 square tube
2" x 0.125" Aluminum Square Tube 6061-T6 288" Length 6061 T6 square tube
2" x 0.25" Aluminum Square Tube 6061-T6 288" Length 6061 T6 square tube
3" x 0.25" Aluminum Square Tube 6061-T6 288" Length 6061 T6 square tube
4" x 0.25" Aluminum Square Tube 6061-T6 288" Length 6061 T6 square tube
6" x 0.25" Aluminum Square Tube 6061-T6 240" Length 6061 T6 square tube

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