Introduction Of Seamless Steel Tubes For Conveying Fluids

A world without seamless steel pipes is something that no one can imagine, and is unacceptable to all. It is because it has better compression resistance than ordinary steel pipes, so it can become an indispensable object in life and work. Maybe you haven't paid too much attention, but seamless steel tubes exist in every part of your life, making your life more convenient and making your work faster and faster.

Seamless steel tubes are rarely quenched and have no temper brittleness. Cold deformation plasticity is high, generally for bending, calendering, crimping and hammer arching, etc., similar to arc welding and contact welding of erw steel pipes. When welding, the thickness is small, and the shape is strict or the shape is complicated. The machinability cold drawing or normalizing state is better than the annealed state, and is generally used for manufacturing low stress and high toughness requirements.

Like many cities today, tap water pipes and natural gas pipelines are also used for seamless steel pipes, which have made great contributions to the urban infrastructure of more cities, and also for many factories and places that need high pressure resistant pipelines. Made a contribution.

16Mn seamless steel pipe is widely used. The general-purpose seamless steel pipe is rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, and has a large output. It is mainly used as a pipe or structural part for conveying fluid, and a seamless steel pipe made of such steel is widely used. Hydraulic props, high-pressure gas cylinders, high-pressure boilers, fertilizer equipment, petroleum cracking, automotive semi-axle sleeves, diesel engines, hydraulic pipe fittings, etc., are treated with surface quenching or high-frequency quenching. Therefore, it depends on the chemical composition (mainly carbon content), heat treatment process and use.

The following are several manufacturing methods for the delivery of fluid tubes:1. The general boiler tube use temperature is below 450 °C, and the domestic tube is mainly made of 10 or 20 carbon steel hot rolled tube or cold drawn tube.2. High-pressure boiler tubes are often subjected to high temperature and high pressure conditions, and the tubes will oxidize and corrode under the action of high temperature flue gas and water vapor. Steel pipes are required to have high durability, high corrosion resistance and good structural stability.

Use:1. General boiler tubes are mainly used to manufacture water-cooled wall pipes, boiling water pipes, superheated steam pipes, superheated steam pipes for locomotive boilers, large and small smoke pipes and arch brick pipes.2. High-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air guiding tubes, main steam tubes, etc. for high-pressure and ultra-high pressure boilers.

However, the round pipe also has certain limitations. For example, under the condition of being bent by the plane, the round pipe is not as strong as the square and rectangular pipe, and some agricultural machinery skeletons, steel wood furniture, etc. are commonly used square and rectangular pipes. Shaped steel pipes of other cross-section shapes are also required depending on the application.

A worker from a steel pipe company, which is located in China.