Anticorrosive pipeline is a type of steel pipeline that undergoes special treatment on the surface of the pipeline to improve its corrosion resistance and extend its service life. Common anti-corrosion treatment methods include spraying, epoxy powder spraying, and mortar lining. Due to the need for steel pipes to come into contact with the environment when leaving the factory, although the steel pipes themselves may also have a certain degree of corrosion protection coating, when used in pipeline construction in fields such as long-distance transportation, offshore oil and gas exploration, and chemical engineering, corresponding anti-corrosion measures should be taken to improve their service life, taking into account the complexity of the operating environment.

Spiral steel pipe is a type of pipeline used for transporting various fluids such as oil, natural gas, water, electricity, etc. It is welded from sheet metal rolled into a spiral shape. Spiral steel pipes are also known as spiral welded steel pipes. In general, spiral steel pipes are made of hot-rolled or cold-rolled steel strips and processed through automated welding processes and efficient pipeline production lines. Its appearance is spiral shaped, and the surface can be painted or galvanized to prevent corrosion of steel.

Seamless steel pipe is a type of steel pipe with uniform inner and outer diameters and consistent wall thickness, which is processed by a piercing machine from a solid cylindrical billet. Compared to welded steel pipes, it has advantages such as no welded joints and excellent mechanical properties, and is commonly used in pipeline transportation systems under high pressure, high temperature, low temperature, and corrosive environments. Common seamless steel pipe materials include carbon steel, alloy steel, and stainless steel.

A straight seam steel pipe is a circular pipe made of flat steel bars or steel plates, and connected through a straight seam welding process. Among them, high-frequency welding, slow arc welding and other methods can be used for welding process. When welding straight seam steel pipes, the long and short welds follow the length direction of the pipe, presenting a linear appearance. Additionally, it should be noted that in order to improve the pressure test performance of straight seam steel pipes, heat treatment or cold processing is usually performed on the welding area during the production process to improve it. Straight seam steel pipes are widely used in industries that require special usage conditions such as high pressure and temperature, as well as conveying various fluids and gases.