The main applications of seamless steel pipes

Seamless steel pipes are widely used in various industrial fields due to their characteristics of no welds, high strength, strong pressure bearing capacity, and good corrosion resistance. According to current (2026) authoritative public information, its main applications can be summarized as follows
1、 Main application areas classified by purpose
Fluid transportation
Transporting fluid media such as oil, natural gas, coal gas, water, oil, etc
Widely used in urban water supply, gas pipeline network, internal pipelines of petrochemical enterprises, etc
Mechanical Manufacturing and Structural Components
Manufacturing key components such as automotive half shafts, transmission shafts, shock absorbers, and steering pipes
Used for high-precision mechanical parts such as bearing sleeves, hydraulic cylinder barrels, pneumatic cylinder barrels, etc
Building scaffolding, bridge structures, heavy equipment frames and other load-bearing structures
Boiler and heat exchange equipment
Low and medium pressure boilers: manufacturing water-cooled wall tubes, boiling water tubes, superheated steam tubes, etc. (GB3087-2018)
High pressure boiler: used for high-temperature and high-pressure components such as main steam pipes and reheater pipes (GB5310-2018)
Energy and Electricity
Oil drilling: drill pipe, casing, drill collar (YB528-65, GB9948-2018)
Power transmission tower: High voltage transmission line steel pipe tower (DL/T 5254-2010)
Nuclear power equipment: Special seamless steel pipes are used in the Hualong No.1 nuclear power unit
Chemical and fertilizer equipment
Chemical pipelines capable of withstanding high pressure (10-30 MPa) and wide temperature range (-40~400 ℃)