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Stainless Steel Rectangle Tube

Stainless Steel Rectangle Tube

Stainless steel rectangle tubes are stocked in various standard sizes and grades, including 304/304L and 316/316L. Either grade suits all structural applications, general fabrication, fabrication, and repair. Stainless steel rectangular tubes can be produced to meet your requirements. Contact us for stainless steel rectangular tube prices!

Stainless Steel Rectangle Tube  Suppliers | Manufacturers | Exporters

Shanghai Huaxiao is a supplier of stainless steel rectangle tubes. They offer a wide range of stainless steel rectangle tubes in various sizes and specifications. As a reputable supplier, they provide high-quality stainless steel tube products to meet the needs of different industries and applications.

stainless rectangular tube, stainless steel rectangular tube, stainless rectangular tubing

Whether you require stainless steel rectangle tubes for construction, manufacturing, or any other purpose, Shanghai Huaxiao can provide reliable and durable solutions. Their expertise and commitment to customer satisfaction make them a trusted supplier in the stainless steel industry.

Specifications of Stainless Steel Rectangular Tube


Stainless Steel Rectangular Tube


SS201, 304, SS 304, 304L, 316, 316L, 409, 2205, etc


Stainless Steel Rectangular Tube Size

Size range: ½” to 12″ Diameter

Wall thickness: .049″ to .375


1 MT


Fibre Bag/Film Coveri/Wooden Package

As a leading supplier of stainless steel rectangular tubes, stainless steel tubular products can meet all your needs. Contact us today to learn more about our stainless steel rectangular tube and the other types of tubes we offer, including polished rectangular tubes, 304/304L rectangular tubes, and 316/316L rectangular tubes.

All materials are manufactured in accordance with ASTM A-554 specifications (latest revision)

Stainless Rectangular Tube Process

The process of manufacturing stainless steel rectangular welded tubes involves several steps. These tubes are commonly used in various industries such as construction, automotive, and manufacturing. Here’s an overview of the typical process:

Stainless Steel Rectangle Tube Suppliers, stainless rectangular tubing

Material Selection:

The first step is to select the appropriate grade of stainless steel for the intended application. Stainless steel is chosen for its corrosion resistance and durability. Common grades include 304 and 316 stainless steel, but the choice depends on factors like environmental conditions and mechanical requirements.

Strip Preparation:

Stainless steel coils or strips are used as the primary raw material. These strips are uncoiled and prepared for further processing. They may undergo processes like edge trimming to ensure uniform width and straightness.


The stainless steel strips are then formed into a continuous tube. This can be done using various methods:

  • Tube Mill: A tube mill is commonly used to form rectangular tubes. The stainless steel strip is passed through a series of rollers and gradually shaped into a rectangular cross-section. The edges of the strip are brought together and welded to create a seam. This seam can be either longitudinal (running along the length) or spiral (helical).
  • Electric Resistance Welding (ERW): In this method, an electrical current is passed through the edges of the stainless steel strip, heating them and causing them to fuse together. ERW can be used to create longitudinal seams in rectangular tubes.
  • High-Frequency Induction Welding: This method uses high-frequency induction heating to join the edges of the stainless steel strip, creating a strong and clean weld.


The continuously formed tube is then sized to achieve the desired dimensions. Sizing rolls or other equipment are used to ensure that the tube’s width, height, and thickness meet the specified tolerances.


The continuous tube is cut into individual lengths according to customer requirements. The cutting can be done using various methods, including rotary saws, laser cutting, or shearing.

Heat Treatment (optional):

Depending on the stainless steel grade and the desired properties, the rectangular welded tube may undergo heat treatment processes such as annealing to improve its mechanical properties and corrosion resistance.

Surface Finishing:

The rectangular welded tubes may undergo surface finishing processes like pickling, passivation, or polishing to improve their appearance and corrosion resistance.

Quality Control:

Rigorous quality control checks are performed throughout the manufacturing process to ensure that the dimensions, weld quality, and overall quality of the rectangular welded tubes meet the required standards and specifications.

Packaging and Shipment:

The finished rectangular welded tubes are cut to the specified lengths, inspected, and then packaged for shipment to customers. Proper packaging ensures that the tubes are protected during transit.

The specific manufacturing process may vary depending on the manufacturer’s equipment, capabilities, and the requirements of the end product. Stainless steel rectangular welded tubes are available in various sizes, wall thicknesses, and surface finishes to meet a wide range of applications. Manufacturers often have the flexibility to produce customized tubes to meet specific customer needs.

Application Range of Stainless Rectangular Tubes

Stainless rectangular tubes have a wide range of applications due to their durability, corrosion resistance, and versatility in various industries. Here are five main application areas for stainless rectangular tubes:

  1. Construction and Architecture:

    • Stainless rectangular tubes are commonly used in construction for structural support and framing, especially in corrosive environments or where aesthetics are important.
    • They are used for handrails, balustrades, and architectural details in modern buildings, as stainless steel provides a sleek and contemporary appearance.
  2. Transportation:

    • Stainless rectangular tubes are used in the automotive, aerospace, and marine industries for components such as exhaust systems, frame structures, and tubing for hydraulic and pneumatic systems.
    • In the rail industry, they can be used for train carriages and components that require corrosion resistance and high strength.
  3. Industrial Equipment and Machinery:

    • Stainless rectangular tubes are essential in the manufacturing of machinery and equipment, where resistance to chemical exposure, high temperatures, and wear is required.
    • They are used for conveyor systems, heat exchangers, pressure vessels, and various components in food processing, pharmaceutical, and chemical industries.
  4. Oil and Gas Industry:

    • Stainless rectangular tubes are utilized in the oil and gas sector for applications requiring resistance to aggressive environments, including offshore platforms, pipelines, and petrochemical equipment.
    • They are also used in the construction of oil storage tanks and process piping systems.
  5. Furniture and Interior Design:

    • Stainless rectangular tubes find applications in the furniture and interior design industry due to their aesthetic appeal and corrosion resistance.
    • They are used for manufacturing furniture frames, decorative elements, and fixtures in kitchens and bathrooms.

These are just a few examples of the diverse range of applications for stainless rectangular tubes. Their excellent combination of mechanical properties and resistance to corrosion makes them suitable for use in various demanding environments and industries.

Stainless Steel Square Tubes, Stainless Steel Square Pipes, Stainless Steel Square Tubes Suppliers

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