Boiler tube refers to steel with open ends and a hollow cross-section, and its length is relatively large compared to the surrounding area. Boiler tubes can be divided into seamless steel tubes and welded steel tubes according to production methods, and can be divided into round tubes and irregular tubes according to cross-sectional shape. Boiler tubes are widely used in pipelines, thermal equipment, mechanical industry, petroleum geological exploration, containers, chemical industry, and special applications
The Types Of Boiler Pipe
Boiler tubes are divided into general boiler tubes and high-pressure boiler tubes according to their operating temperature and pressure.
General boiler tubes: Used at temperatures below 350℃, mainly made of hot-rolled or cold drawn tubes of 10 and 20 carbon steel. Mainly used for manufacturing water-cooled wall tubes, boiling water tubes, superheated steam tubes, superheated steam tubes for locomotive boilers, large smoke tubes, and arch brick tubes.
High pressure boiler tubes: Used at temperatures between 350℃ and 600 ℃, mainly made of materials such as 20G, 12Cr1MoVG, 40Cr, etc. Mainly used for manufacturing superheater tubes, reheater tubes, air ducts, main steam pipes, etc. for high-pressure and ultra high pressure boilers
The Standard Of Boiler Tube
The manufacturing method of boiler tubes is the same as that of seamless tubes, but there are strict requirements for the steel grade used to manufacture steel pipes. Generally, boiler tubes are mainly made of hot-rolled or cold drawn 10# and 20# carbon steel pipes, while high-pressure boiler tubes require high durability, anti-oxidation and corrosion resistance, and good structural stability under the action of high-temperature.
