Properties and applications of anti-corrosion steel pipes

Properties and applications of anti-corrosion steel pipes

Anticorrosive pipes, also known as anti-corrosion and insulation pipes refer to pipes that have undergone anti-corrosion processing Steel pipelines that can effectively prevent or slow down the occurrence of chemical or electrochemical reactions and corrosion during transportation and use. 8710 anti-corrosion spiral steel pipes refer to steel pipes with open ends and hollow sections, which have a larger length compared to the surrounding area. According to production methods, they can be divided into seamless steel pipes and welded steel pipes. The specifications of steel pipes are represented by external dimensions (such as outer diameter or side length) and wall thickness, and their size range is wide, from small diameter capillary pipes to large diameter pipes up to several meters in diameter. According to statistics from China, the direct economic loss caused by steel pipe corrosion in China is over 280 billion yuan per year. Currently, the global annual loss caused by steel pipe corrosion is as high as 500 billion US dollars (USD). Anticorrosive pipes can effectively prevent or slow down corrosion.

When there are many types of corrosive media inside the steel pipe, such as acid, alkali, salt, oxidant, and water vapor, the coating must have chemical inertness, resistance to acid, alkali, and salt corrosion, and the coating film should have a dense structure, good waterproof permeability, strong adhesion, and toughness. Our pipeline company has over 20 years of production and operation experience. The production process of FBE anti-corrosion pipes, 2PE anti-corrosion pipes, 3PE anti-corrosion pipes, and internal and external coated anti-corrosion pipes has been inspected by laboratory testing staff, ensuring the quality of the products. Anticorrosive pipes are mainly used in pipeline engineering fields such as oil transportation, chemical engineering, natural gas transportation, sewage treatment, water sources, bridges, steel structures, etc. in China.

High density polyethylene coating anti-corrosion structure: Made of high-density polyethylene material wrapped on the surface of the steel pipe, it has extremely high mechanical strength and excellent corrosion resistance, which can protect the steel pipe from damage caused by external factors during transportation, installation, and use. Buried 3PE anti-corrosion steel pipes are coated with zinc on the surface of thin steel plates and steel strips by continuous hot plating method, which can prevent corrosion and rust on the surface of thin steel plates and steel strips. Galvanized steel plates and strips are widely used in industries such as machinery, light industry, construction, transportation, chemical industry, post and telecommunications, etc. Polyurethane insulated steel pipe factories are widely used in manufacturing industries such as construction, machinery, coal mines, chemicals, electricity, railway vehicles, automotive industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, and exploration machinery. The outer sleeve should be manufactured with the addition of oxygen resistant agents, UV stabilizers, and carbon (C) black. Polyethylene outer sleeve pipes are prone to aging. If stored outdoors, they should be covered with tarpaulin or other materials. The stacking area should be kept away from high heat sources and ignition sources. After being made into anti-corrosion insulation pipes, it is prohibited to expose them to sunlight or sudden cooling, otherwise the polyethylene outer sleeve pipes are prone to cracking, affecting product performance and service life.