Seamless Boiler Tubes refers to the steel with openings at both ends and hollow section, whose length is larger than that of the surrounding steel. According to the production method, it can be divided into seamless steel pipe and welded steel pipe. The specification of steel pipe is expressed by the overall dimension (such as outer diameter or side length) and wall thickness, and its size range is very wide, from the capillary with small straight diameter to the large-diameter pipe with a diameter of several meters. Steel pipe can be used for pipeline, thermal equipment, mechanical industry, petroleum geological exploration, container, chemical industry and special purpose.
Standard:ASTM A178 /ASTM 179/ASTM A209/ASTM A210/ASTM A213/ASTM250 etc.
Material: A209T1/SA209 T1, A209 T1b/SA-209 T1b, A209T1a/SA209 T1a
ASTM A213: T2, T5, T9, T11, T12, T22, T23, T24, T91, T911, T92, T122
ASTM A333: Gr1, Gr3, Gr4, Gr6, Gr7,Gr8, Gr9, Gr10, Gr11
Fixed Length: 5.8m, 6m, 11.8m, 12m, or random length as required.
The Seamless Boiler Tubes is divided into general boiler pipe and high pressure boiler pipe according to the high temperature performance.
1) general boiler pipes are mainly used to manufacture water wall pipes, boiling water pipes, superheated steam pipes, superheated steam pipes for locomotive boilers, large and small smoke pipes, arch brick pipes, etc.
2) high pressure boiler pipe is mainly used to manufacture superheater pipe, reheater pipe, air pipe, main steam pipe, etc. of high pressure and ultra-high pressure boiler.
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