Home » Seamless Precision Steel Tubes » Classification of alloy seamless steel pipe

Seamless steel tube for structure: mainly used for general structure and mechanical structures. His representative material (brands): carbon steel, 20, 45th; steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.

Transmission fluid seamless steel tubes: mainly used for projects and large devices transmission fluid pipes. Representative material (grade) of 20, Q345, etc.
Low/middle-pressure boiler seamless steel tubes: mainly used in industrial boilers and boiler low pressure fluid pipe. Representative material for steel, 10, 20th.
Seamless steel tubes for high pressure boilers: mainly used in power stations and nuclear power plant boiler high temperature, high pressure transmission fluid-headers and pipes. Representative material for 20G, 12Cr1MoVG, 15CrMoG, etc.
Carbon steel and carbon manganese steel seamless steel tubes for ship: mainly used for marine boilers and overheating I, II-level pressure pipe and so on. Representative material is 360, 410, 460, grade, etc.

Seamless steel tubes for high pressure fertilizer equipment: mainly used for chemical fertilizer equipment for high temperature and high pressure fluid pipes. Representative material for 20, 16Mn, 12CrMo, 12Cr2Mo, and so on.
Seamless steel tubes for petroleum cracking: mainly used for oil refinery boiler, heat exchanger and its transmission fluid pipes. His representative material for 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, and so on.
Seamless gas cylinders: mainly used in the production of gas, hydraulic cylinders. His representative material for 37Mn, 34Mn2V, 35CrMo etc.
Hot rolled seamless steel pipes for hydraulic props: mainly used in coal mine hydraulic support cylinder, cylinder, hydraulic cylinder, and other columns. His representative material for 20, 45, 27SiMn.

Diesel used high-pressure seamless steel pipe: mainly used for injection system of diesel engine high pressure tubing. The steel for cold-drawn pipe, his representative material for 20A.
Cold-drawn or cold-rolled precision seamless steel tubes: pressure equipment mainly used in mechanical construction, carbon, requiring high dimensional accuracy, surface finish and good pipe. His representative material 20, 45 steel.

Source: http://www.steel-tubes.com/