Structural seamless steel pipes are mainly used for general structures and mechanical structures. Its representative materials (grades): carbon steel 20, No. 45 steel; alloy steel Q345, 20Cr, 40cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
Seamless steel pipes for conveying fluids are mainly used for conveying fluid pipes in engineering and large equipment. Representative materials (grades) are 20, Q345, etc.
Seamless steel pipes for low and medium pressure boilers are mainly used for pipelines for conveying low and medium pressure fluids in industrial boilers and domestic boilers. Representative materials are No. 10 and No. 20 steel.
Seamless steel pipes for high-pressure boilers are mainly used for high-temperature and high-pressure fluid headers and pipes on boilers in power plants and nuclear power plants. Representative materials are 20G, 12Cr1MoVG, 15CrMoG, etc.
Carbon steel and carbon-manganese steel seamless steel pipes for ships are mainly used for Class I and II pressure pipes for ship boilers and superheaters. Representative materials are 360, 410, 460 steel grades, etc.
Seamless steel pipes for high-pressure fertilizer equipment are mainly used for pipelines for transporting high-temperature and high-pressure fluids on fertilizer equipment. Representative materials are 20, 16Mn, 12CrMo, 12Cr2Mo, etc.
Seamless steel pipes for petroleum cracking are mainly used in boilers, heat exchangers and pipelines for conveying fluids in petroleum smelters. Its representative materials are 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, etc.
Seamless steel pipes for gas cylinders are mainly used to make various gas and hydraulic cylinders. Its representative materials are 37Mn, 34Mn2V, 35CrMo and so on.
Hot-rolled seamless steel pipes for hydraulic props are mainly used to make coal mine hydraulic supports, cylinders, columns, and other hydraulic cylinders and columns. Its representative materials are 20, 45, 27SiMn and so on.
High-pressure seamless steel pipes for diesel engines are mainly used for high-pressure fuel pipes in diesel engine injection systems. The steel pipe is generally a cold drawn pipe, and its representative material is 20A.
Cold-drawn or cold-rolled precision seamless steel pipes are mainly used for mechanical structures and carbon pressing equipment, requiring high dimensional accuracy and good surface finish. Its representative material is 20, 45 steel and so on.
Cold-drawn seamless steel pipe Special-shaped steel pipe is mainly used to make various structural parts and parts, and its material is high-quality carbon structural steel and low-alloy structural steel.
Precision inner diameter seamless steel tubes for hydraulic and pneumatic cylinders are mainly used to make cold drawn or cold rolled seamless steel tubes with precise inner diameters for hydraulic and pneumatic cylinders. Its representative materials are 20, 45 steel and so on.
Stainless steel seamless steel pipes for boilers and heat exchangers are mainly used for boilers, superheaters, heat exchangers, condensers, catalytic tubes, etc. in chemical enterprises. High temperature, high pressure and corrosion resistant steel pipes. Its representative materials are 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, etc.
Structural stainless steel seamless pipe). It is mainly used for general structure (hotel, restaurant decoration) and chemical enterprise mechanical structure resistant to air, acid corrosion and steel pipe with certain strength. Its representative materials are 0-3Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, etc.
Stainless steel seamless steel pipes for fluid transportation are mainly used for pipelines conveying corrosive media. Representative materials are 0Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr17Ni12Mo2, 0Cr18Ni12Mo2Ti, etc.
Seamless steel pipes for automobile half-shaft casings are mainly used to make high-quality carbon structural steel and alloy structural steel hot-rolled seamless steel pipes for automobile half-shaft casings and drive axle casing shaft pipes. Its representative materials are 45, 45Mn2, 40Cr, 20CrNi3A and so on.
