What is a rectangular tube?

Hollow section pipe has the characteristics of corrosion resistance, safety, weldability and easy to use, so the product is suitable for various industries. Rectangular tubes, as one of them, are very popular in many mechanical and construction steels, and they are widely used in metal fabrication and joining because of their unique flat surface.

Definition:

Rectangular tube is a hollow steel pipe with a rectangular cross-section, also known as steel cooling curved profile. It is a Q235 hot-rolled or cold-rolled strip or coil as the base material through cold bending processing and then through high-frequency welding made of square section shape and size of the section steel. Because of its simple appearance, stable structure and light weight, rectangular pipe is widely used in construction, machinery manufacturing, furniture manufacturing and other fields.

Classification of rectangular tubes:

Rectangular tubes can be divided into cold-drawn rectangular tubes, hot-rolled rectangular tubes and welded rectangular tubes according to the process. Among them, the welded rectangular pipe can be divided into straight seam and spiral welding according to the weld, and can be divided into arc welding, resistance welding, gas welding, furnace welding and so on.

According to the material can be divided into carbon steel rectangular pipe, stainless steel rectangular pipe, alloy steel rectangular pipe and so on.

According to the use, it can be divided into rectangular tubes for structure, rectangular tubes for decoration and rectangular tubes for fluid transportation.

Main features of rectangular tube:

1. Section shape: The section of the rectangular tube is rectangular, which is suitable for load-bearing structures or application scenarios requiring flat surfaces.
2. Various materials: Common materials include carbon steel, stainless steel, alloy steel, etc., which can meet the requirements of different strength and corrosion resistance.
3. Excellent strength and rigidity: compared with other pipes of the same cross-sectional area, rectangular pipes have stronger bending and torsional properties and can withstand larger loads.
4. Easy to process and connect: Rectangular tube is easy to cut, weld, drill and other secondary processing, can meet the needs of complex structural design.

Main uses of rectangular tube:

1. Construction industry: Widely used in building frames, steel beams, steel columns and other load-bearing structures, providing excellent support performance. It can also be used as decorative materials to make decorative pendant such as guardrail and handrail, which is beautiful in appearance and easy to process.
2. Machinery manufacturing: used to manufacture supporting frames, operating platforms, robotic arms, etc., because of its high strength and easy welding, it has become a commonly used material in machinery manufacturing.
3. Furniture manufacturing: Rectangular tubes are often used in the manufacture of furniture, such as tables and chairs, bed frames, storage racks, etc. It is simple and light, and has strong load-bearing capacity.
4. Bridge construction: mostly used for bridge railings, support rods and other parts.

Summary

Rectangular tubes can meet the needs of different industries and scenarios because of their diverse specifications, excellent performance and easy processing. From construction to machinery manufacturing, from furniture to the automotive industry, the application range of rectangular tubes continues to expand, providing an important support for modern industry and life.