High pressure boiler tube is one kind of seamless steel pipe. The manufacturing mehod of high pressure boiler tube is the same as other type of seamless steel pipe. However, the steel materials used for high pressure boiler tube has strict requirements. High pressure boiler tube often used in high temeprature and high pressure condition. The pipes is often under the condition of high temperature gas and water vapor, would oxidation and corrosion. Therefore, high pressure boiler tubes require durable steel with high strength, high oxidation resistance, and have good organizational stability. High pressure boiler tube is mainly used to manufacture high and ultra-high pressure boiler superheater tubes, reheater tube, airway, steam pipe etc.
When high pressure boiler seamlss steel tubes use hot rolled manufacturing process, and the outside diameter of the tubes ranges from 22m to 530mm, and the wall thickness of the tubes ranges from 20mm to 70mm. If the manufacturing process is cold drawn, the specification of outside diameter ranges from 10mm to 108mm, wall thickness ranges from 2.0mm to 13.0mm.
