Did you know about the many uses of seamless steel pipe?

Seamless steel pipe is a very common pipe material. Depending on its application and material, it can be divided into thick-walled and thin-walled types. Seamless steel pipe has a wide range of uses. The following are its main application areas:

 

 

Seamless Steel Pipe for Fluid Transport
This seamless steel pipe is primarily used for transporting fluids in engineering and large-scale equipment. Representative materials include 20 and Q345.

 

General-Purpose Seamless Steel Pipe
This seamless steel pipe can be rolled from ordinary carbon structural steel, low-alloy structural steel, or alloy structural steel, depending on the material. For example, seamless pipes made from low-carbon steels such as No. 10 and No. 20 are primarily used for transporting steam, gas, liquefied petroleum gas, natural gas, various petroleum products, and other gases or liquids. Seamless pipes made from medium-carbon steels such as 45 and 40Cr are primarily used in the manufacture of various machine parts and pipe fittings.

 

Seamless Steel Pipe for Special Purposes
This seamless steel pipe is used in specialized applications such as boilers, geological exploration, bearings, and acid-resistant pipes. Examples include oil geological drilling pipes, cracking pipes for petrochemicals, boiler tubes, bearing tubes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

 

Structural Seamless Steel Pipes
This seamless steel pipe is primarily used for general and mechanical structures. Typical materials include carbon steels No. 20 and No. 45; and alloy steels Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, and 42CrMo.

 

Low- and Medium-Pressure Boiler Seamless Steel Pipes
This seamless steel pipe is primarily used for conveying low- and medium-pressure fluids in industrial and domestic boilers. Typical materials include No. 10 and No. 20 steels.

 

High-Pressure Boiler Seamless Steel Pipes
This seamless steel pipe is primarily used for high-temperature, high-pressure fluid conveying headers and pipelines in power and nuclear power plant boilers. Typical materials include 20G, 12Cr1MoVG, and 15CrMoG.

 

Carbon Steel and Carbon-Manganese Steel Seamless Steel Pipes for Shipbuilding

This seamless steel pipe is primarily used for Grade I and II pressure-resistant pipes for ship boilers and superheaters. Typical materials include 360, 410, and 460 steel grades.

 

Seamless Steel Pipe for High-Pressure Fertilizer Equipment
This seamless steel pipe is primarily used for piping to transport high-temperature and high-pressure fluids in fertilizer equipment. Typical materials include 20, 16Mn, 12CrMo, and 12Cr2Mo.

 

Seamless Steel Pipe for Petroleum Cracking
This seamless steel pipe is primarily used for boilers, heat exchangers, and other fluid transport piping in petroleum refineries. Typical materials include 20, 12CrMo, 1Cr5Mo, and 1Cr19Ni11Nb.

 

Seamless Steel Pipe for Gas Cylinders
This seamless steel pipe is primarily used for various gas and hydraulic cylinders. Typical materials include 37Mn, 34Mn2V, and 35CrMo.

 

Hot-Rolled Seamless Steel Pipe for Hydraulic Supports
This seamless steel pipe is primarily used for manufacturing hydraulic supports, cylinders, and columns in coal mines, as well as other hydraulic cylinders and columns. Typical materials include 20, 45, and 27SiMn.

 

High-Pressure Seamless Steel Pipe for Diesel Engines

This seamless steel pipe is primarily used for high-pressure fuel lines in diesel engine injection systems. It is typically cold-drawn, and the typical material is 20A.

 

This seamless steel pipe is primarily used for Grade I and II pressure-resistant pipes for ship boilers and superheaters. Typical materials include 360, 410, and 460 steel grades.

 

Seamless Steel Pipe for High-Pressure Fertilizer Equipment
This seamless steel pipe is primarily used for piping to transport high-temperature and high-pressure fluids in fertilizer equipment. Typical materials include 20, 16Mn, 12CrMo, and 12Cr2Mo.

 

Seamless Steel Pipe for Petroleum Cracking
This seamless steel pipe is primarily used for boilers, heat exchangers, and other fluid transport piping in petroleum refineries. Typical materials include 20, 12CrMo, 1Cr5Mo, and 1Cr19Ni11Nb.

 

Seamless Steel Pipe for Gas Cylinders
This seamless steel pipe is primarily used for various gas and hydraulic cylinders. Typical materials include 37Mn, 34Mn2V, and 35CrMo.

Hot-Rolled Seamless Steel Pipe for Hydraulic Supports

This seamless steel pipe is primarily used for manufacturing hydraulic supports, cylinders, and columns in coal mines, as well as other hydraulic cylinders and columns. Typical materials include 20, 45, and 27SiMn.

 

High-Pressure Seamless Steel Pipe for Diesel Engines

This seamless steel pipe is primarily used for high-pressure fuel lines in diesel engine injection systems. It is typically cold-drawn, and the typical material is 20A.