Title: No. 20 high-pressure fertilizer pipeline pipe 273*7 seamless steel pipe GB T6479-2013
1. Overview of 273*7 seamless steel pipe for No. 20 high-pressure fertilizer pipeline.
No. 20 high-pressure fertilizer pipeline 273*7 seamless steel pipe is one of the important pipeline materials in petroleum, chemical, fertilizer and other industrial fields. This kind of steel pipe has excellent properties such as high strength, high toughness and corrosion resistance, and can meet the transportation requirements in various complex environments. This article will introduce in detail the manufacturing process, performance characteristics, uses and precautions of 273*7 seamless steel pipe for No. 20 high-pressure fertilizer pipe.
2. 273*7 seamless steel pipe manufacturing process for No. 20 high-pressure fertilizer pipeline.
The manufacturing process of 273*7 seamless steel pipe for No. 20 high-pressure fertilizer pipeline mainly includes the following steps:
1.Smelting: Smelting is carried out by electric furnace or blast furnace to prepare billets that meet the requirements.
2.Rolling: After the billet is heated, it is rolled in multiple passes to form the required tube blank.
3.Seamless forming: Using advanced seamless forming technology, the tube blank is processed into seamless steel pipes.
4.Heat treatment: through high temperature tempering or normalizing treatment, the mechanical properties of steel pipes are improved.
5.Surface treatment: surface polishing or spraying anti-corrosion coating to improve the corrosion resistance of steel pipes.
3. Performance characteristics of 273*7 seamless steel pipe for No. 20 high-pressure fertilizer pipeline.
1.High strength: No. 20 high-pressure fertilizer pipeline pipe 273*7 seamless steel pipe has high tensile strength and yield point, which can withstand large pressure and bending stress.
2.High toughness: This kind of steel pipe has good toughness in low temperature environment, which can avoid brittle fracture caused by temperature changes.
3.Corrosion resistance: Through surface treatment or internal anti-corrosion coating, the 273*7 seamless steel pipe for No. 20 high-pressure fertilizer pipeline has good corrosion resistance and can adapt to the transportation of various corrosive media.
4.Long life: Due to its excellent performance and manufacturing process, the steel pipe has a long service life and high economy.
Fourth, No. 20 high-pressure fertilizer pipeline pipe 273 * 7 seamless steel pipe use.
No. 20 high-pressure fertilizer pipeline 273*7 seamless steel pipe is widely used in petroleum, chemical, fertilizer and other industrial fields, mainly used to transport high-temperature, high-pressure, corrosive media. For example, in fertilizer production, such steel pipes are used to transport ammonia, carbon dioxide and other media;In the petrochemical industry, it is used to transport corrosive media such as ** and acid. Due to its excellent performance and wide applicability, the steel pipe has become an important part of the industrial piping system.
5. Precautions for use.
In order to ensure the safe use of 273*7 seamless steel pipe for No. 20 high-pressure fertilizer pipeline and prolong its service life, users need to pay attention to the following:
1.When installing, it should be installed in strict accordance with the size and requirements of the steel pipe to ensure that the connection is well sealed and leakage is avoided.
2.During use, the surface condition and joints of the steel pipe should be checked regularly, and damage or leakage should be dealt with in time.
3.For corrosive media, appropriate anti-corrosion coatings or materials should be selected according to the specific media to ensure the corrosion resistance and service life of steel pipes.
4.During the operation, attention should be paid to controlling the temperature and pressure of the medium to avoid damage to the steel pipe caused by overload operation.
5.During maintenance, attention should be paid to avoid violent impact or mechanical damage to the steel pipe, so as not to affect its normal use and safety.
VI. Conclusions. As an important industrial pipeline material, 273*7 seamless steel pipe for No. 20 high-pressure fertilizer pipeline has excellent properties such as high strength, high toughness and corrosion resistance, and is widely used in petroleum, chemical, fertilizer and other industrial fields. Understanding its manufacturing process, performance characteristics, uses and precautions for use will help to better select and use this kind of steel pipe, and improve the safety and efficiency of industrial production.