Boiler&Heat-Exchanger Tube

Boiler tube is divided into general boiler tube and high-pressure boiler tube according to the use temperature. General boiler pipe temperature below 350℃, mainly used to manufacture water wall tube, boiling water tube, superheated steam tube, locomotive boiler superheated steam tube and so on. The high-pressure boiler tube is often under the condition of high temperature and high pressure. The tube will be oxidized and corroded by the action of high temperature flue gas and water vapor. This requires high durable strength, high oxidation resistance and corrosion resistance, and good tissue stability. High pressure boiler tube is mainly used to manufacture superheater tube, reheater tube, air guide tube, main steam tube and so on.

The heat exchanger tube is one of the components of the heat exchanger, which is used to exchange heat between two media, and has high thermal conductivity and good isothermal property. It is a device that can quickly transfer heat energy from one point to another and has little heat loss, so it is called a heat transfer superconductor with a thermal conductivity of thousands of times that of copper.

The common materials of boiler and heat exchange tube are carbon steel, low alloy steel, stainless steel, copper, copper nickel alloy, aluminum alloy, titanium and so on. According to the production method it can be divided into seamless steel pipe and welded steel pipe.

JIS G3462

Alloy Steel Boiler and Heat Exchanger Tubes

JIS G3463

Stainless Steel Boiler and Heat Exchanger Tubes

GB 3087

Seamless Steel Tube for Low and Medium Pressure Boiler

GB 5310

Seamless Steel Tube and Pipes for High Pressure Boiler

GB 13296

Seamless Stainless Steel Tube for Boiler and Heat Exchanger

GB/T 24593

Welded Austenitic Stainless Steel Tube for Boiler and Heat Exchanger