Square pipe is a common steel pipe, usually with a square cross-section and has good compressive resistance and strength. There are many types and application fields，The types and application fields of square tubes are very wide, covering many fields such as construction, machinery manufacturing, energy transmission, and transportation. As a common steel product, rectangular steel pipe is widely used in construction, manufacturing and other fields. It has the characteristics of stable structure, strong load-bearing capacity and corrosion resistance, so it is very popular. 1. Rectangular welded steel pipe Rectangular welded steel pipe is a steel pipe with a rectangular cross-section made from hot-rolled or cold-rolled steel strips through a welding process. It has the characteristics of low production cost and simple processing technology. Rectangular welded steel pipes are mainly used in building structures, machinery manufacturing, bridge construction and other fields. 2. Rectangular galvanized steel pipe Rectangular galvanized steel pipe is based on rectangular welded steel pipe and processed by hot-dip galvanizing process. Hot-dip galvanizing can effectively prevent steel pipes from being oxidized and corroded, and extend the service life of steel pipes. Rectangular galvanized steel pipes are widely used in petroleum, chemical industry, water supply, gas supply and other fields. 2.Rectangular seamless steel pipe Rectangular seamless steel pipe is a steel pipe with a rectangular cross-section made from a blank through heating, perforation, rolling and other processes. Compared with welded steel pipes, rectangular seamless steel pipes have higher tensile strength and greater load-bearing capacity. Rectangular seamless steel pipes are mainly used in high-pressure equipment, petroleum geology, shipbuilding and other fields. 4. Rectangular stainless steel pipe Rectangular stainless steel pipe is a steel pipe with a rectangular cross-section made of stainless steel. Stainless steel has the characteristics of strong corrosion resistance and beautiful appearance, so rectangular stainless steel pipes are widely used in architectural decoration, food processing, chemical equipment and other fields. There are various types of rectangular steel pipes, each type has its own unique characteristics and scope of application. The characteristics and applications of various rectangular steel pipes will be analyzed in more detail below. There are various types of rectangular steel pipes, each type has its own unique characteristics and scope of application. The characteristics and applications of various rectangular steel pipes will be analyzed in more detail below. 1. Rectangular welded steel pipe Rectangular welded steel pipe is a steel pipe with a rectangular cross-section made from steel strips through a welding process. It has the following characteristics: (1) The manufacturing process is simple and the cost is low. (2) Smooth appearance, precise dimensions, and easy to install. (3) It has strong bearing capacity and is suitable for general building structures and machinery manufacturing. 2. Rectangular galvanized steel pipe Rectangular galvanized steel pipe is made of rectangular welded steel pipe through hot-dip galvanizing process. It has the following characteristics: (1) The surface is covered with a layer of zinc to effectively prevent the steel pipe from being oxidized and corroded. (2) Long service life, suitable for petroleum, chemical industry, water supply and other fields. (3) The appearance is bright and has certain decorative properties. 3. Rectangular seamless steel pipe Rectangular seamless steel pipe is a rectangular cross-section steel pipe made from a blank through heating, perforation, rolling and other processes. It has the following characteristics: (1) High tensile strength and large load-bearing capacity. (2) The internal and external surfaces are smooth and the dimensions are accurate. (3) Suitable for high-pressure equipment, petroleum geology, shipbuilding and other fields. 4. Rectangular stainless steel tube Rectangular stainless steel pipe is a rectangular cross-section steel pipe made of stainless steel. It has the following characteristics: (1) It has strong corrosion resistance and is suitable for chemical equipment, marine engineering and other fields. (2) It has beautiful appearance and can be used for architectural decoration. (3) No galvanizing or other processing is required, and it is easy to use. To sum up, there are many types of rectangular steel pipes, each type has its own unique characteristics and scope of application. Understanding the different types of rectangular steel pipes can help us choose steel products suitable for specific needs and ensure project quality and safety. In practical applications, factors such as the material, specifications and processing technology of the steel pipe need to be considered according to specific circumstances to meet the requirements of the project. To learn more, please visit the website: www.baowi-steel.com