BS 3059 II 440 seamless tube

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BS 3059 II 440 boiler tube, seamless tube

BS 3059 II 440 requirements specification for carbon, alloy and austenitic stainless steel tubes with specified elevated temperature properties.
The method of manufacturing boiler tube is the same with seamless steel pipe,but this pipe has a requirement of the steel grades. Depending on the operating temperature, it can be divided into two kinds: general boiler pipes and high-pressure boiler tubes.
A general boiler pipe is able to work below the temperature 450°C.It’s made of hot finished or cold rolled carbon steel pipes. While high-pressure boiler tube is used to produce high-pressure or ultrahigh pressure super heater tube,reheater tube,gas-guide tube,main steam pipe and so on. Our product BS3059-II 440 belongs to this boiler tube.

Size range of BS3059-II 440 boiler tube

  • Out diameter:19.05-114.3mm
  • Wall thickness:2-14mm
  • Max length:16m

Keywords

BS3059-II 440,BS 3059 Part II  Gr.440, Boiler Steel Tube, Boiler tube, seamless steel tubes BS3059

Delivery Condition:

  • Heat treatment,Annealed, Normalized, Normalized and Tempered

Surface treatment:

  • Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting

Application:

  • For tubular heat exchangers,condensers and similar heat transfer apparatus.

Chemical Composition of BS3059-II 440 boiler tube seamless tube:

StandardCMnPSSi
BS3059-II 4400.12-0.180.90-1.20≤0.035≤0.0350.10-0.35



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