High-pressure boiler steel pipe

High-pressure boiler tubes:-Forged Flange Manufacturer
 high-quality carbon structural steels, alloy structural steels, and stainless heat-resisting steel seamless tubes, which are mainly used for the production of high-pressure and high-pressure steam boiler tubes, etc., and these boiler tubes are operated under high temperature and high pressure. In addition, the pipes may be oxidized and corroded under the action of high-temperature flue gas and water vapor. Therefore, the steel pipes are required to have high endurable strength, high oxidation resistance, and good organization stability. The steel grades are: high-quality carbon Structural steel grades are 20G, 20MnG, 25MnG; alloy structural steel grades 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG,

12Cr3MoVSiTiB, etc.; rust heat-resistant steel commonly used 1Cr18Ni9, 1Cr18Ni11Nb high-pressure boiler tubes in addition to ensure chemical composition and mechanical properties In addition, the hydrostatic test should be done one by one, and flaring and flattening tests should be conducted. The steel pipe is delivered in a heat-treated state. In addition, there are certain requirements on the microstructure, grain size, and decarburization layer of the finished steel pipe. Geological drilling and seamless steel tubes for oil drilling control; use drilling rigs to drill wells to ascertain underground rock formations, groundwater, oil, natural gas, and mineral resources. Oil and gas exploitation can not do without drilling wells. The seamless steel pipe used for oil drilling in geological drilling control is the main equipment for drilling, mainly including core outer pipe, core inner pipe, casing, drill pipe and so on. Because the drilling pipe is required to work deep into the depth of a few kilometers, the working conditions are extremely complex. The drill pipe is subjected to stress such as pulling, pressing, bending, torsion, and unbalanced impact loads, and it is also subject to mud and rock wear. Therefore, the pipe is required. Must have sufficient strength, hardness, wear resistance and impact toughness, steel with steel "DZ" (Geological Pinyin initials) plus a number to represent the steel yield point, commonly used steel DZ45 45MnB, 50Mn; 40Mn2, 40Mn2Si of DZ50; 40Mn2Mo, 40MnVB of DZ55; 40MnMoB of DZ60; 27MnMoVB of DZ65. Steel pipes are delivered in a heat-treated state. Petroleum Cracking Pipes: Seamless tubes for furnace tubes, heat exchanger tubes, and pipes used in oil refineries. Commonly used high-quality carbon steel (10,20), alloy steel (12CrMo, 15CrMo), heat-resistant steel (12Cr2Mo, 15Cr5Mo), stainless steel (1Cr18Ni9, 1Cr18Ni9Ti) manufacturing. In addition to the chemical composition and various mechanical properties of the steel pipe, it is also necessary to ensure that the water pressure, flattening, flaring and other tests, as well as the surface quality and non-destructive testing. Steel pipes are delivered under heat treatment. Stainless steel pipe: It is hot-rolled and cold-rolled stainless steel pipes of various stainless steels. It is widely used in petroleum and chemical equipment pipelines and stainless steel structural parts for various purposes. In addition to ensuring chemical composition and mechanical properties, it is used as a steel pipe to withstand fluid pressure. To ensure that the water pressure test qualified. All kinds of special steel pipes should be guaranteed by the regulations.
Welded steel pipe: Also called welded pipe, it is formed by bending steel plate or strip and then welded. Divided into straight seam welded pipe and spiral welded pipe.