Newly Arrival Square Pipe - Boiler steel pipe hot rolled seamless high pressure boiler tube – Lu

Introduction

Boiler steel pipe refers to the steel with open ends and hollow section, and its length is larger than that of the surrounding. According to the production method, it can be divided into seamless steel pipe and welded steel pipe. The boiler steel pipe specifications use the external dimensions (such as outer diameter or side length) And the wall thickness indicates that its size range is very wide, from a small diameter capillary tube to a large-diameter tube with a diameter of several meters. Boiler steel pipe is a kind of seamless pipe. The manufacturing method is the same as that of seamless pipes, but there are strict requirements on the steel grades used in the manufacture of steel pipes. According to the operating temperature, it can be divided into two types: general boiler tubes and high-pressure boiler tubes. ①Generally, the temperature of boiler tubes is below 450℃. Domestic tubes are mainly made of No. 10 and No. 20 carbon steel hot-rolled tubes or cold-drawn tubes.
② High-pressure boiler steel pipes are often in high temperature and high pressure conditions when used, and the pipes will be oxidized and corroded under the action of high-temperature flue gas and water vapor. The steel pipe is required to have high durable strength, high oxidation and corrosion resistance, and good organizational stability.

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