1, (structural seamless steel pipe) is mainly used for general structure and mechanical structure. Representative materials (grade): carbon steel 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CRMO, 42CrMo, etc.
2, seamless steel pipe for conveying liquids. Mainly used for engineering and large-scale equipment to transport fluid pipelines. Representative materials (grade) for 20, Q345, etc..
3, Gb3087-1999 (seamless steel pipe for medium pressure boiler). Mainly used for industrial boilers and domestic boilers to transport low pressure, medium pressure fluid. Representative materials are 10, 20 steel.
4, high-pressure boiler seamless steel pipe. Mainly used in power stations, nuclear power plant boilers in high temperature and high pressure transportation fluid collection box and piping. Representative materials for 20G, 12Cr1MoVG, 15CrMoG and so on.
5, (marine carbon steel, carbon-manganese steel seamless steel pipe) is mainly used for marine boilers, superheaters, a class, two types of pressure pipe. Representative materials for 360, 410, 460 steel grade.
6, Gb1479-2000 (high-pressure fertilizer equipment with seamless steel pipe). Mainly used to transport high temperature, high pressure fluid pipeline fertilizer equipment. Representative materials are 20, 16mn, 12CrMo, 12Cr2Mo and so on.
7, seamless steel pipe for oil cracking. Mainly used in petroleum refinery boilers, heat exchangers and fluid piping. Its representative materials are 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb and so on.
8, Gb18248-2000 seamless steel pipe for cylinders is mainly used in the manufacture of various gases and hydraulic cylinders. Its representative materials are 37Mn, 34Mn2V, 35CrMo and so on.
9, hot rolled seamless steel pipe for hydraulic strut. Mainly used in the production of coal hydraulic support and cylinders, columns and other hydraulic cylinders, columns. Its representative materials are 20, 45, 27SiMn and so on.
10, high pressure seamless steel pipe for diesel engine. Mainly used for diesel engine injection system of high pressure fuel pipe. The steel tube is generally cold drawn, and its representative material is 20A.
11, (cold-drawn or cold-rolled precision seamless steel tube) is mainly used for mechanical structure, pressure carbon equipment, requiring high dimensional accuracy, good surface finish of the steel tube. Its representative material 20, 45 steel and so on.
12, (cold-drawn shaped seamless steel tube) is mainly used in the manufacture of a variety of structural components and parts, the material is high-quality carbon structural steel and low alloy structural steel.
13, (hydraulic, pneumatic pipeline with accurate internal diameter of seamless steel pipe) used in the manufacture of hydraulic and pneumatic cylinders with accurate internal diameter of cold drawn or cold rolled seamless steel pipe. Its representative material for 20, 45 steel, etc..
14, seamless stainless steel tubes for boilers and heat exchangers. Mainly used in chemical enterprises, boilers, superheaters, heat exchangers, condensers, catalytic tubes and so on. High temperature, high pressure, corrosion-resistant steel pipe. Its representative materials are 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti and so on.
15, stainless steel seamless steel pipe for structure. Mainly used for general structure (hotel, hotel decoration) and chemical enterprise mechanical structure of the atmosphere, acid corrosion resistance and have a certain strength of the steel pipe. Its representative materials are 0-3CR13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti and so on.
16, seamless stainless steel pipe for fluid transportation. Mainly used for conveying corrosive media pipeline. Representative materials are 0Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr17Ni12Mo2, 0Cr18Ni12Mo2Ti and so on.
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