GB T9948 2013 Petroleum Cracking Seamless Steel Pipe No. 20 Material 820 20
1. Overview. GB T9948-2013 Petroleum Cracking Seamless Steel Pipe No. 20 Material 820*20 is a special seamless steel pipe used in petroleum cracking process, made of No. 20 steel, with an outer diameter of 820 mm and a wall thickness of 20 mm. This kind of steel pipe has the advantages of high strength, high pressure resistance, high corrosion resistance, etc., and can withstand high pressure, high temperature, corrosion and other harsh environments, and is widely used in petroleum, chemical, natural gas and other fields.
2. Features. 1.High strength: GB T9948-2013 Petroleum Cracking Seamless Steel Pipe No. 20 Material 820*20 has high strength, can withstand high pressure, high temperature, impact and other harsh environments, and has a long service life.
2.High pressure resistance: This kind of steel pipe has very good pressure resistance, and can work stably for a long time in a high-pressure environment to ensure the normal operation of the oil cracking process.
3.High corrosion resistance: GB T9948-2013 petroleum cracking seamless steel pipe No. 20 material 820*20 has good corrosion resistance, can resist the corrosion of various chemicals, and ensure the safe use of pipelines.
4.Good process performance: The process performance of this steel pipe is very good, easy to process and weld, and can meet various complex process requirements.
5.Wide range of applications: GB T9948-2013 petroleum cracking seamless steel pipe No. 20 material 820*20 is widely used in petroleum, chemical, natural gas and other fields, is one of the indispensable and important materials in the petroleum cracking process.
3. Manufacturing process.
1.Smelting: No. 20 steel is smelted by electric furnace or converter to ensure the quality of molten steel.
2.Continuous casting: Molten steel is poured into a continuous caster for continuous casting to form a billet.
3.Rolling: The billet is fed into the rolling mill for rolling, forming a steel pipe of the desired diameter and thickness.
4.Heat treatment: heat treatment is carried out on steel pipes to improve their mechanical properties and corrosion resistance.
5.Inspection: Non-destructive testing and mechanical property testing of steel pipes are carried out to ensure product quality.
Fourth, the application case.
When a petrochemical company carries out the petroleum cracking process, it needs to use GB T9948-2013 petroleum cracking seamless steel pipe No. 20 material 820*20 steel pipe. After many comparisons and screenings, a manufacturer with relevant qualifications and experience was finally selected, and a certain number of steel pipes were ordered according to the requirements. In the process of use, this steel pipe shows good performance and service life, ensuring the stable operation of the oil cracking process.
5. Summary. GB T9948-2013 Petroleum Cracking Seamless Steel Pipe No. 20 Material 820*20 is an excellent special seamless steel pipe for petroleum cracking, which has the advantages of high strength, high pressure resistance and high corrosion resistance, and is widely used in petroleum, chemical industry, natural gas and other fields. In the manufacturing process, it is necessary to go through multiple links such as smelting, continuous casting, rolling, heat treatment and inspection to ensure product quality. In the process of use, it is necessary to operate and maintain it in accordance with the requirements to ensure its good performance and service life.