General purpose

1. Seamless steel pipe for structure (GB/T8162-1999) is used for general structure and mechanical structure of seamless steel pipe.
2 fluid conveying seamless steel pipe (GB/T8163-1999) is used for conveying water, oil, gas and other fluids of the general seamless steel pipe.
3. Seamless steel pipe for low and medium pressure boiler (GB3087-1999) is used in the manufacture of various structures of low and medium pressure boiler superheated steam pipe, boiling water pipe and locomotive boiler superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe pipe of high quality carbon structural steel hot rolled and cold drawn (rolled) seamless steel pipe.
4. Seamless steel pipe for high pressure boiler (GB5310-1995) is used for the manufacture of high pressure and above the pressure of water tube boiler heating surface with high quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipe.
5. High pressure seamless steel pipe for chemical fertilizer equipment (GB6479-2000) is suitable for the working temperature of -40~ 400℃, the working pressure of 10~ 30mA chemical equipment and pipeline of high quality carbon structural steel and alloy steel seamless steel pipe.
6. Seamless steel tubes for petroleum cracking (GB9948-88) are seamless steel tubes for furnace tubes, heat exchangers and pipelines used in petroleum refineries.
7. Steel pipe for geological drilling (YB235-70) is the steel pipe used by geological departments for core drilling, which can be divided into drill pipe, drill collar, core pipe, casing and settling pipe, etc.
8. Seamless steel pipe for diamond core drilling (GB3423-82) is the seamless steel pipe for drill pipe, core rod and casing for diamond core drilling.