Why are anti-corrosion steel pipes so important?
Posted by zora li on November 8th, 2023
Anti-corrosion steel pipes refer to steel pipes treated with anti-corrosion technology, which can effectively prevent or slow down corrosion caused by chemical or electrochemical reactions during transportation and use. Generally speaking, it refers to the anti-corrosion treatment of ordinary steel pipes (such as seamless pipes and welded pipes) through special processes so that the steel pipes have certain anti-corrosion capabilities. Generally, it also has the characteristics of waterproof, rust-proof, acid and alkali resistance, and anti-oxidation. Generally speaking, PE anti-corrosion steel pipe refers to polyethylene anti-corrosion steel pipe, which is a tubular product processed using advanced science and technology. PE anti-corrosion steel pipes are widely used in oil, natural gas, city gas, city water supply, coal-water slurry pipelines, etc.
Corresponding anti-corrosion measures can also be taken on the inner and outer walls of the steel pipe according to different requirements. Common ones include epoxy coal pitch anti-corrosion steel pipes, polyurethane coating anti-corrosion, cement mortar anti-corrosion on the inner wall of anti-corrosion steel pipes, etc. Anti-corrosion steel pipes are mainly used in engineering fields with the following characteristics: Special requirements or harsh environments.
Pipeline corrosion factors:
1. Electrochemical dissolution corrosion. Soil is a complex mixture of solid, liquid, and gas phases. Due to the presence of water and ion-conducting salts in the soil environment, the soil structure has the characteristics of different electrolyte solutions, which constitute electrochemical dissolution and corrosion of metal parts.
2. Due to the influence of external leakage current, stray current can pass through the soil, causing stray current corrosion.
3. The action of bacteria in the soil environment causes biological corrosion.
What are the uses of anti-corrosion steel pipes?
1. The base materials of anti-corrosion steel pipes include spiral pipes (SSAW pipes), straight seam pipes, seamless pipes, etc. It is widely used in pipeline engineering fields such as long-distance water transmission, petroleum, chemical industry, natural gas, thermal power, sewage treatment, water sources, bridges, steel structures, marine water transmission piling and other fields.
2. Anti-corrosion steel pipes are widely used in oil, natural gas, city gas, city water supply, and coal-water slurry pipelines.
Compared with ordinary steel pipes, what are the characteristics of anti-corrosion steel pipes?
1. Anti-corrosion steel pipes have the characteristics of corrosion resistance, no leakage, high toughness, excellent flexibility, good scratch resistance, and good quick crack resistance. Anti-corrosion steel pipes have a service life of more than 50 years in an environment of 60 degrees Celsius or above.
2. Anti-corrosion steel pipes using liquid epoxy coating IPN8710 initiate polymerization at room temperature. The two can learn from each other and create synergy. The coating film is non-toxic, high solid and low viscosity. It is a new anti-corrosion coating with strong adhesion, high strength, wear resistance, hydrolysis resistance, corrosion resistance, water resistance and weather resistance. Moreover, the requirements for surface rust removal of steel structures are not high, and the operating temperature can be within the range of -20~120℃.
3. Epoxy coal tar anti-corrosion steel pipe combines the characteristics of high mechanical strength, strong adhesion and resistance to chemical media corrosion of epoxy resin and water resistance, antibacterial and plant root resistance of asphalt. It is a high-performance anti-corrosion insulating coating with good chemical resistance and water resistance.
Advantages of anti-corrosion steel pipes in practical applications
1. Longer life. Ordinary steel pipes have a certain service life. After ordinary building materials are treated with anti-corrosion technology, their service life can be as long as 20-30 years or even longer, saving enterprises the cost of replacement and maintenance.
2. The construction method is simple and the steps are quick. It can be constructed in factories and construction sites. Compared with old-fashioned steel pipes, the construction of anti-corrosion steel pipes is very simple, does not require major equipment and space, and is suitable for on-site operations.
3. Construction projects are cheap. Compared with the quality and service life of ordinary steel pipes, anti-corrosion steel pipes are more economical and applicable than traditional steel pipes.
4. Anti-corrosion steel pipes are designed with environmental protection as the center. Today, where environmental protection is emphasized, this design is more in line with the needs of the progress of the times. In the future, the environmental protection requirements for the carrier pipelines that transport fluids will become more and more stringent, and products that cannot keep up with the environmental protection development of the times will eventually be eliminated.
Anti-corrosion steel pipe has corrosion resistance and excellent flexibility, and is a good steel pipe material. Anti-corrosion steel pipes have various uses and can be used in many fields such as natural gas, heat, sewage treatment, etc.
