ASTM A192 High quality seamless Steel Boiler Tube/pipe
Production
Boiler tube is a kind of seamless tube. The manufacturing method is the same as that of seamless pipe
but there are strict requirements for the steel grade used in the manufacture of steel pipe. According to
the service temperature, it is divided into general boiler tube and high-pressure boiler tube.
Generally, the service temperature of boiler tubes is below 350 ℃, and domestic tubes are mainly made
of No. 10 and No. 20 carbon structure steel hot-rolled tubes or cold drawn tubes.
High pressure boiler tubes are often in high temperature and high pressure conditions when in use, and the
tubes are in the operation of high temperature flue gas and steam
When used, oxidation and corrosion will occur. The steel pipe is required to have high lasting strength, high
anti-oxidation and corrosion performance and good structural stability.
seamless Steel Boiler Tube/pipe are usually used in the following scope:
1.General boiler tubes are mainly used to manufacture water wall tubes, boiling water tubes, superheated
steam tubes, superheated steam tubes for locomotive boilers, large and small smoke tubes and arch brick tubes.
2.High pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air ducts,
main steam tubes, etc. of high-pressure and ultra-high-pressure boilers.
Production Process for seamless Steel Boiler Tube/pipe:
Round Steel Billet →
Hot Piercing →
Hollow Section Tubes →
Pickling/Lubrication →
Cold Drawing/Cold Rolling →
Heat Treatment Annealing/Bright Annealing →
old Drawing/Cold Rolling → to final dimension and tolerances
Final Heat Treatment of Annealing/Bright Annealing
Products Show from mass production:
Workshop for seamless Steel Boiler Tube/pipe:
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