1. The structure of stainless steel seamless pipe (GB/T8162-1999) is used for general structural and mechanical structure of the seamless steel tubes.
2. Fluid transport stainless steel seamless pipe (GB/T8163-1999) is used for conveying water, oil, gas and other fluids generally seamless.
3. Low and medium pressure boiler steel seamless pipe (GB3087-1999) is used to manufacture various structural low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam locomotive boiler pipes, opium pipe, small pipe and arch brick works of quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel tubes.
4. High-pressure boiler seamless pipe (GB5310-1995) and above are used to manufacture high pressure water tube boiler heating surface with high-quality carbon steel, alloy steel and heat-resistant stainless steel seamless pipes.
5. High pressure chemical fertilizer equipment, stainless steel seamless pipe (GB6479-2000) is applicable to operating temperature -40 ~ 400 ℃, working pressure of 10 ~ 30Ma of chemical equipment and pipeline quality carbon structural steel and alloy steel seamless pipe .
6. Petroleum cracking of stainless steel seamless pipe (GB9948-88) is applicable to the oil refinery furnace tubes, heat exchangers and pipe seamless steel pipe.
7. geological drilling steel (YB235-70) is the core drilling for geological department of the steel used by applications can be divided into the drill pipe, drill collars, cores, sleeves and precipitation tubes.
8. Diamond core drilling seamless pipe (GB3423-82) is used for diamond core drilling drill, core rods, seamless steel pipe casing.
9. Oil drilling pipe (YB528-65) is used for oil drilling within the thickening or external upset ends of seamless steel tubes. Minute drive wire and steel wire are not two kinds of vehicles, vehicle wire connector useful links, not threading methods and tools useful butt joint connection.
10. The ship carbon steel seamless pipe (GB5213-85) is the manufacture of pressure vessels piping Class I, Ⅱ grade pressure piping, boilers and Super heater carbon steel seamless steel tubes. Carbon steel seamless pipe wall temperature does not exceed 450 ℃, alloy steel seamless pipe wall temperature exceeds 450 ℃.
11. Automobile axle casing of stainless steel seamless pipe (GB3088-82) is the manufacture of automobile axle casing and drive shaft axle housing of high quality carbon steel pipes and alloy steel hot-rolled seamless steel tubes.
12. Diesel high pressure oil pipe (GB3093-2002) is to create high-pressure diesel injection system works in the cold drawn seamless steel tubes.
13. Hydraulic and pneumatic cylinder diameter seamless steel tubes with precision (GB8713-88) is a manufacturer of hydraulic and pneumatic cylinder with a diameter size with precision cold drawn or cold rolled precision seamless steel tubes.
14. Cold drawn or cold rolled precision seamless steel pipe (GB3639-2000) is used for mechanical structure, hydraulic equipment, high dimensional accuracy and surface finish of a good cold-drawn or cold rolled precision seamless steel tubes. Use precision seamless steel tube manufacturing equipment, mechanical structures or hydraulic, mechanical processing save hours of work can greatly improve material utilization, and help to improve product quality.
15. Stainless steel seamless tubes (GB/T14975-2002) is widely used in chemical, petroleum, textile, medical, food, machinery and other industrial corrosion resistant pipes and structural parts and components made of stainless steel hot-rolled (extrusion, expansion) and cold drawn (rolled) seamless steel tubes.
16. Fluid transport stainless steel seamless pipe (GB/T14976-2002) is used for the transmission fluid made of stainless steel, hot rolled (extrusion, expansion) and cold drawn (rolled) seamless steel tubes.
17. Shaped seamless steel pipe is in addition to other than the cross section of seamless steel tubes in general. By steel cross-section can be divided into different shapes and sizes and so shaped seamless steel pipe wall thickness (code-named D), ranging from shaped seamless steel pipe wall thickness (code-named BD), variable diameter shaped seamless steel pipe (code-named BJ). Shaped seamless steel tubes are widely used in various structural parts, tools and mechanical parts. And the tube compared to shaped tubes are generally larger moment of inertia and section modulus, torsional bending greater ability to significantly reduce the structural weight, saving steel seamless steel pipe prices.