Q345B Q355B seamless steel pipe 284*35
1. Product introduction.
Q345B Q355B seamless steel pipe is a metal pipe widely used in construction, machinery, petroleum, chemical, electric power and other industries. Its material is Q345B or Q355B, which is a low-alloy high-strength structural steel with high strength and good plasticity and toughness. Due to its unique manufacturing process, seamless steel pipe has the characteristics of smooth inner wall, tight outer wall, high precision and stable quality.
2. Product specifications and dimensions.
The specification of Q345B Q355B seamless steel pipe is 284*35, that is, the outer diameter is 284mm, and the wall thickness is 35mm. This specification of seamless steel pipe has high load-bearing capacity and good corrosion resistance, and is suitable for conveying fluids and bearing pressure in various harsh environments.
Third, the production process.
The production process of Q345B Q355B seamless steel pipe mainly includes the following steps:
1.Steelmaking: Steelmaking is made by electric furnace or converter to remove impurities in the molten iron and ensure the purity of the molten steel.
2.Rolling: The molten steel is fed into the rolling mill, and after multiple rolling processes, the steel pipe is gradually thinned and formed into a seamless tube shape.
3.Heat treatment: Heat treatment is applied to the rolled seamless steel pipe to improve its strength and toughness.
4.Finishing: Finish the seamless steel pipe after heat treatment, including straightening, cutting, surface treatment, etc., to ensure product quality.
Fourth, product performance and characteristics.
1.High strength: Q345B Q355B seamless steel pipe has high strength and can withstand greater pressure and weight.
2.Corrosion resistance: The inner wall of the seamless steel pipe has been specially treated to have good corrosion resistance and can adapt to the conveying fluid in various harsh environments.
3.Wear resistance: The outer wall of the seamless steel pipe has been finished to have good wear resistance and prolong the service life.
4.Low fluid resistance: Due to the smooth inner wall of the seamless steel pipe, the fluid resistance is small, which can reduce the transportation cost and improve the transportation efficiency.
5.Easy to install and maintain: Seamless steel pipe connection is convenient, welding, flange connection and other methods can be used, and the installation and maintenance cost is low.
Fifth, the field of application.
Q345B Q355B seamless steel pipe is widely used in the following fields:
1.Construction industry: used for the support and connection of infrastructure such as high-rise buildings, bridges, tunnels, etc.
2.Machinery industry: used to manufacture various mechanical parts and equipment, such as hydraulic cylinders, cylinders, etc.
3.Petrochemical industry: used to transport oil, natural gas and other fluid media, as well as to manufacture various chemical equipment.
4.Electric power industry: used in the manufacture of towers, brackets, etc. for high-voltage transmission lines.
5.Other fields: such as shipbuilding, aerospace, etc.
VI. Conclusions. Q345B Q355B seamless steel pipe, as a high-performance metal pipe, has a wide range of application fields and good market prospects. With the continuous development of science and technology, its production process and product quality will continue to improve, providing more reliable support and guarantee for the development of all walks of life.