The chemical composition of GB/T 3087 seamless steel pipe mainly includes elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P) and sulfur (S). The specific chemical composition content varies according to the type and purpose of the steel pipe. For example, for No. 20 steel GB/T3087 low and medium pressure boiler tubes, the carbon content, silicon content, manganese content, phosphorus content and sulfur content have specific control ranges to ensure that the mechanical properties and corrosion resistance of the steel pipes meet standard requirements. .
The production method of GB/T 3087 seamless steel pipe mainly includes the following key steps: smelting, piercing, rolling, heat treatment,
Surface treatment.
GB/T 3087 seamless steel pipe has a series of remarkable characteristics, making it widely used in many fields. The following are the main features of GB/T 3087 seamless steel pipe:
1. High strength and toughness: It has excellent mechanical properties and can withstand high pressure and impact force, ensuring safety and reliability in various engineering applications.
2. Good corrosion resistance: GB/T 3087 seamless steel pipe has undergone special smelting and rolling processes, as well as possible surface treatments, and has excellent corrosion resistance. It can resist the erosion of various chemical substances and extend its service life.
3. Precise size and appearance: The outer surface of the steel pipe presents a special metallic luster, and the cross-sectional shape is round or oval. It has high dimensional accuracy, smooth inner and outer walls, and no defects such as bubbles, cracks, shrinkage holes, etc., ensuring good processing and installation performance.
GB/T 3087 seamless steel pipe has a wide range of applications, mainly in the following fields: Industrial field: used for the transportation of liquids and gases, such as oil, natural gas, water, air, etc. Construction field: Due to its light weight and excellent mechanical properties, installation and transportation in the construction industry are more convenient, thereby improving work efficiency. Low and medium pressure boiler manufacturing: seamless steel pipes for low pressure boilers (pressure less than or equal to 2.5MPa) and medium pressure boilers (pressure less than or equal to 3.9MPa). Components such as superheated steam pipes, boiling water pipes, water wall pipes, smoke pipes and arch pick pipes used to manufacture these boilers ensure the safe and stable operation of the boilers.
