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.
ASTM A178
Electric-Resistance-Welded(ERW) Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes
ASTM A179
Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
ASTM A192
Seamless Carbon Steel Boiler Tubes for High Pressure
ASTM A209
Seamless Carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes
ASTM A210
Seamless Steel Boiler and SuperheaterTubes
ASTM A213
Seamless Ferritic and Austenitic Alloy-Steel Boiler Superheater and Heat-Exchanger Tubes
ASTM A214
Electric-Resistance-Welded(ERW) Carbon Steel Heat-Exchanger and Condenser Tubes
ASTM A249
Welded Austenitic Steel Boiler Super-heater Heat-exchanger and Condenser Tubes
ASTM A250
Electric-Resistance-Welded(ERW) Ferritic Alloy-Steel Boiler and Superheater Tubes
JIS G3461
Carbon Steel Boiler and Heat Exchanger Tubes