A high pressure tube is a tube that can withstand pressure. It is used to transport the liquid. There are many kinds of pipes, such as steel tubes, copper tubes, stainless steel tubes, and so on. High quality carbon structural steel and alloy structural steel high pressure pipe are mainly used for manufacturing steam boilers and pipes with high pressure and above pressure.

High pressure steel pipe and stainless steel seamless steel pipe, these boiler tubes work under high temperature and high pressure, and the pipe will be oxidized and corroded under the action of high temperature smoke and steam. Therefore, the steel pipe has high lasting strength, high oxidation resistance and good organization stability.
The high pressure pipe occupies an important position in the development of the steering pipe of the hydraulic power steering system.

Steel number is: high quality carbon steel steel steel number 20G, 20MnG, 25MnG; alloy structural steel steel 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc.; rust resistant steel commonly used 1Cr18Ni9, 1Cr18Ni11Nb high pressure pipe in addition to chemical composition and mechanical energy, to do water pressure test, to make expansion. Oral and flattening tests. The steel pipe is delivered in heat treatment state.
In addition, the microstructure, grain size and decarburization layer of finished steel pipe also have certain requirements. Seamless pipes for geological drilling and oil drilling and control are used for drilling underground wells in order to ascertain the structure of underground strata, underground water, oil, natural gas and mineral resources.
The exploitation of oil and natural gas can not be separated from the drilling, and the geological drilling and controlling of the seamless steel pipe used for oil drilling is the main equipment of the drilling, which mainly includes core outer tube, core tube, casing, drill rod and so on.
Because the drilling pipe has to work deep into the depth of several kilometers, the working conditions are very complex, the drill rod is subjected to tensile, pressure, bending, torsional and unbalanced impact loads, and it is also worn by mud and rock. Therefore, the pipe must have enough strength, hardness, wear resistance and impact toughness, steel pipe. The use of steel "DZ" (Geological Chinese Pinyin head) is represented by a number of steel yield points. The commonly used steel numbers are DZ45 45MnB, 50Mn; DZ50 40Mn2, 40Mn2Si; DZ55 40Mn2Mo, 40MnVB; DZ60 40MnMoB.
The steel pipes are all delivered in heat treatment.
Petroleum cracking pipe: seamless tube for furnace tubes, heat exchanger tubes and pipes used in petroleum 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, the steel pipe should also ensure water pressure, flattening, flaring and other tests, as well as surface quality and non-destructive testing. The steel pipe is delivered under heat treatment.
Stainless steel pipe: hot rolled stainless steel tubes of various stainless steel, cold rolled stainless steel pipes, widely used in oil, chemical equipment pipes and all kinds of stainless steel structures for various purposes. In addition to ensuring chemical composition and mechanical properties, all steel pipes used to withstand fluid pressure should be qualified for water pressure testing. All kinds of special steel pipe should be guaranteed according to the stipulations.
High pressure rubber tube has non-toxic, environmental, physiological inertia, UV resistance, ozone resistance, high temperature resistance (-80 to 300 degrees), high transparency, strong resilience, compression resistant permanent non deformation, oil resistance, stamping, acid and alkali resistance, abrasion resistance, refractory, voltage resistance, electrical conductivity and so on.

High pressure metal tubes have high lasting strength, high oxidation resistance and corrosion resistance, good tissue stability and sufficient strength, hardness, wear resistance and impact toughness.