No. 20 seamless steel pipe 720*20 high-pressure fertilizer pipeline pipe GB T6479-2013 standard.
1. Overview. No. 20 seamless steel pipe is a commonly used pipe material with excellent corrosion and wear resistance. 720*20 is the size of the steel pipe, which means that its outer diameter is 720mm and the wall thickness is 20mm. This kind of steel pipe is widely used in high-pressure fertilizer pipelines, because its excellent mechanical properties and corrosion resistance can meet the high pressure and strong corrosion environment in the fertilizer production process.
Second, the production standard.
GB T6479-2013 is the production standard of No. 20 seamless steel pipe, which specifies the manufacturing, inspection and testing methods of this steel pipe to ensure that its quality and performance meet the relevant requirements. This standard is applicable to the production and inspection of seamless steel pipes for fertilizer pipelines, and provides a reliable pipeline material guarantee for fertilizer production.
3. Manufacturing process.
The manufacturing process of No. 20 seamless steel pipe mainly includes the following steps:
1.Smelting: High-quality molten steel is used for smelting to ensure that the chemical composition and mechanical properties of the steel meet the standard requirements.
2.Rolling: The smelted ingots are rolled to form steel pipes of the required specifications.
3.Heat treatment: The steel pipe is treated at high temperature to improve its hardness and corrosion resistance.
4.Inspection: Strict inspection of finished steel pipes, including inspection of appearance quality, dimensional accuracy, mechanical properties, etc., to ensure that product quality meets the standard requirements.
Fourth, the field of application.
No. 20 seamless steel pipe has been widely used in high-pressure fertilizer pipelines, because its excellent mechanical properties and corrosion resistance can meet the high pressure and strong corrosion environment in the fertilizer production process. In addition, the steel pipe can also be used in high-pressure pipeline systems in petroleum, chemical, electric power and other fields.
5. Summary. No. 20 seamless steel pipe 720*20 is one of the important materials for fertilizer pipes, and its manufacture and application meet the requirements of GB T6479-2013 standard. The steel pipe has excellent corrosion and wear resistance, which can meet the high pressure and strong corrosion environment in the fertilizer production process. In the production process, manufacturing and inspection are carried out in strict accordance with the standard requirements to ensure that the product quality meets the standard requirements. At the same time, the steel pipe can also be used in high-pressure pipeline systems in other fields, providing reliable pipeline material guarantee for the development of various fields.