The HP boiler tube is mainly used to manufacture steam boilers with high pressure and above made of high-quality carbon structural steel, alloy structural steel and stainless heat-resistant steel seamless steel tubes. These boiler tubes are often operated under high temperature and high pressure industrial dusty environments, and the tubes are subject to oxidization and corrosion under the actions of high temperature flue gas and water vapor. Therefore, the steel tubes are required to have high durability, strong oxidation resistance and good tissue stability.
The LP & MP boiler tube generally refers to the seamless steel tube used for LP boilers (less than or equal to 2.5 MPa) and MP boilers (less than or equal to 3.9 MPa). It can be used to fabricate the superheated steam tube, boiling water tube, water wall tube, flue gas tube and arch brick tube of the LP & MP boilers. It is generally made of hot-rolled or cold-rolled high-quality carbon structural steel, 10#, 20#, etc. The boiler tube is generally subject to hydrostatic pressure, crimping, flaring, flattening and other tests in order to ensure the product quality and performance.
The petroleum cracking pipe is used as the furnace tube, heat exchanger tube and pipelines in petroleum refineries. Generally, it is made of high-quality carbon steel (10, 20), alloy steel (12CrMo, 15CrMo), heat-resistant steel (12Cr2Mo, 15Cr5Mo), stainless steel (1Cr18Ni9, 1Cr18Ni9Ti).
The HP fertilizer pipe is a kind of steel pipe used for fertilizer production and transport, and has the characteristics of high strength, high corrosion resistance, etc. Its production process covers the steps such as tube blank inspection, peeling, heating, perforation, pickling, cold drawing, solid solution treatment, pickling passivation, etc.
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