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Help CenterInconel Steel Tubes Q345 Q390、Q420 Seamless Alloy Steel Pipe
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Seamless alloy steel pipes: Main materials and applications
Structural seamless pipes: Mainly used for general structures and mechanical structures. Representative materials (grades) include carbon steel grades 20 and 45, as well as alloy steel grades Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
Fluid transportation seamless pipes: Mainly used for fluid pipelines in engineering and large equipment. Representative materials (grades) include 20 and Q345.
Low and medium pressure boiler seamless pipes: Mainly used for industrial boilers and domestic boilers for transporting low and medium pressure fluids. Representative materials are 10 and 20 steel grades.
High pressure boiler seamless pipes: Mainly used for high temperature and high pressure fluid transportation in power stations and nuclear power plants. Representative materials include 20G, 12Cr1MoVG, 15CrMoG, etc.
Carbon steel and carbon-manganese steel seamless pipes for ships: Mainly used for ship boilers and superheaters of I and II grade pressure-resistant pipes, etc. Representative materials include 360, 410, 460 steel grades, etc.
Seamless pipes for high-pressure fertilizer equipment: Mainly used for transporting high-temperature and high-pressure fluids in fertilizer equipment. Representative materials include 20, 16Mn, 12CrMo, 12Cr2Mo, etc.
Seamless pipes for gas cylinders: Mainly used for manufacturing various gas and hydraulic gas cylinders. Representative materials include 37Mn, 34Mn2V, 35CrMo, etc.
Hot-rolled seamless pipes for hydraulic supports: Mainly used for manufacturing hydraulic supports and cylinders in coal mines, as well as other hydraulic cylinders and columns. Representative materials include 20, 45, 27SiMn, etc.
High-pressure seamless pipes for diesel engines: Mainly used for high-pressure oil pipes in diesel engine injection systems. The pipes are generally cold-drawn tubes, and the representative materials are 20A.
Cold-drawn or cold-rolled precision seamless pipes: Mainly used for mechanical structures, carbon pressure equipment, and tubes requiring high dimensional accuracy and smooth surface, representing materials 20, 45, etc.
Application fields
Energy industry: In the extraction and transportation of oil and natural gas, seamless alloy steel pipes are used to manufacture oil well pipes, oil and gas pipelines, etc.; in the power industry, they can be used for high-temperature and high-pressure pipelines, superheaters, reheaters and other equipment in power station boilers.
Mechanical manufacturing: It is often used to manufacture mechanical parts, such as shafts, gears, bearing rings, etc., and can also be used to manufacture automotive transmission shafts, bicycle frames, etc.
Chemical industry: It is used to transport various corrosive media and high-temperature and high-pressure fluids, such as pipelines for chemical reaction vessels, connecting pipelines for distillation towers, etc.
Construction field: It can be used as scaffolding pipes in construction, steel pipe components in bridge structures, etc.
Military field: It is an indispensable material for various conventional weapons, such as gun barrels, cannon barrels, etc. are all made of seamless alloy steel pipes.
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