Low pressure boiler tube is open on both ends and has a hollow section, the length and the surrounding of the larger steel, according to the production methods can be divided into seamless steel pipe and welded steel pipe, steel pipe specification with overall dimensions (such as the diameter or length) and the wall thickness, said its size range is very wide, from small diameter capillary until several meters in diameter, large diameter pipe. Boiler tube can be used in the pipeline, thermal technology equipment, mechanical industry, petroleum geological exploration, containers, chemical industry, and special purpose.

The manufacture of the low pressure boiler tube method:

(1) general boiler tube temperature under 350 ℃, the domestic pipe mainly use 10, 20 carbon steel hot rolled or cold drawn tube manufacture.

(2) low pressure boiler tubes are often in high temperature and high pressure conditions, when using the pipe under the action of high temperature flue gas and water vapor, oxidation and corrosion will happen. Requirements of steel pipe with high rupture strength, high oxidation corrosion resistance, and have good organizational stability.