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brass boiler tube tapered plug

author:MF manufacturerstime:2022-03-15 06:45:09

Low and medium pressure boiler tubes generally refer to low pressure boilers(pressure less than or equal to2.5MPa)and medium pressure boilers(pressure less than or equal to3.9MPa)of seamless steel pipes,Superheated steam tubes that can be used in the manufacture of low and medium pressure boilers、boiling water pipe、water wall tube、Smoke pipes and arch brick pipes, etc.,generally used10、20Made of high-quality carbon structural steel such as hot-rolled or cold-rolled。Usually requires water pressure、crimping、Flaring、Flattening and other tests to ensure product quality and performance。

brass boiler tube tapered plug

Specification

Specifications use outer diameter×wall thickness(unit:mm)Express。

(brass boiler tube tapered plug)GB3087-2008《Seamless steel pipes for low and medium pressure boilers》Regulation,Specifications of steel pipes for various structural boilers,outer diameter10~426mm,total43kind。wall thickness1.5~26mmtotal29kind。But locomotive boilers use superheated steam pipes、big smoke pipe、The outer diameter and wall thickness of small smoke pipes and arch brick pipes are otherwise specified。Permissible deviation of outer diameter and wall thickness due to compliance with the table1Regulation。

(brass boiler tube tapered plug)brass boiler tube tapered plug

mechanicalcan

(brass boiler tube tapered plug)tensile strength σb (MPa):≥410;Yield Strength σs (MPa):≥245;Elongation δ5 (%):≥25;rate of reduction in area ψ (%):≥5;hardness :Not heat treated,≤156HB;。Heat treatment specification and metallographic structure:normalizing,910℃,air cooling。Microstructure:Ferrite+Pearlite。

brass boiler tube tapered plug

Weight calculation

W(kg/m)=(outer diameter-wall thickness)×wall thickness×0.02466

Steel pipes delivered by theoretical weight,The allowable deviation between the theoretical weight and the actual weight of a single steel pipe is divided into five levels。

brass boiler tube tapered plug

use

Used in the manufacture of various low and medium pressure boilers、Superheated steam pipe、boiling water pipe、Water-cooled wall tubes and superheated steam tubes for locomotive boilers、big smoke pipe、Small smoke pipes and arch brick pipes, etc.。

brass boiler tube tapered plug

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