The boiler tubes is recognised like a sort of seamless pipe. producing methods and seamless pipe, but stringent specifications for manufacture of metal pipes employed inside the steel. According toward the temperatures level is divided into standard boiler tubes elbow pipe and considerable stress boiler tube two.

(1) producing method:
① standard boiler tube temperatures below 450 ℃, the domestic pipe concerning the 10th, the 20th of carbon structural metal hot-rolled pipe or chilly drawn tube manufacturing.
② high-pressure boiler tube is employed often in ailments of considerable temperatures and considerable stress pipe, the effect of considerable temperatures flue gasoline and consuming water vapor, oxidation and corrosion. metal pipe with considerable rupture strength, considerable resistance to oxidative corrosion and have amazing organizational stability.

(2) purposes:
① standard boiler tubes is generally employed to manufacture consuming water wall tubes, tubes in boiling consuming water and superheated steam elbow pipe, superheated steam locomotive boiler tubes, large and tiny smoke pipe and pipe arch brick.
② high-pressure boiler tube is generally employed to manufacture considerable stress and ultra-high stress boiler superheater tubes, reheater tubes, airway, the principal steam pipe.