Supply 12Cr3MoVSiTiB high pressure boiler tube seamless steel pipe in stock

材质：

锅炉无缝管

规格：

常规齐全

品牌：

国产进口

Introduction: Boiler tubes refer to steel materials that are open at both ends and have hollow sections. The ratio of their length to the surrounding area is large. According to the production method, they can be divided into seamless steel pipes and welded steel pipes. The specifications of steel pipes are determined by external dimensions such as outer diameter or side length and wall. Thickness means that the size range is very wide, from capillary tubes with very small diameters to large diameter tubes with diameters of several meters. Steel pipes can be used in pipelines, thermal equipment, machinery industry, petroleum, geological exploration, containers, chemical industry and special purposes.
Production and manufacturing methods
① Generally, the operating temperature of boiler tubes is below ℃. Domestic tubes are mainly made of high-grade carbon steel hot-rolled tubes or cold-drawn tubes.
② High-pressure boiler tubes are often exposed to high temperature and high pressure conditions when used. When the tubes are exposed to high-temperature flue gas and water vapor, oxidation and corrosion will occur.
Steel pipes are required to have high lasting strength, high resistance to oxidation and corrosion, and good structural stability.
Boiler tube uses ① Generally, boiler tubes are mainly used to make water-cooled wall tubes, boiling water tubes, superheated steam tubes, superheated steam tubes for locomotive boilers, large and small smoke tubes and arch brick tubes, etc.
② High-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air guide tubes, main steam tubes, etc. for high-pressure and ultra-high-pressure boilers. The supply and demand trend in the high-pressure boiler tube industry is generally stable, but the supply and demand situation in each specific sub-industry will further diverge. Industry insiders pointed out that the key link is the use and promotion of new energy-saving and insulated high-pressure boiler tube equipment. New energy-saving high-pressure boiler tube products are gradually increasing in the market, such as green and environmentally friendly coatings, energy-saving and water-saving sanitary products, environmentally friendly stones, environmentally friendly exterior cement foam insulation boards, etc. The prospects for energy-saving and environmentally friendly products in the broad market of the high-pressure boiler tube industry are promising. .
[] Relevant regulations
B/ "Seamless steel pipes for high-pressure boilers" regulations. The chemical composition test methods are in accordance with the relevant parts of "Methods of Chemical Analysis of Steel and Alloys" B "Methods of Chemical Analysis of Steel and Alloys".
The chemical composition inspection of imported boiler steel pipes shall be carried out in accordance with the relevant standards stipulated in the contract.