The use of seamless pipe industry

The use of seamless pipe industry

Seamless steel pipe is a kind of thin steel with hollow cross-section and no joints around. They are widely used in a variety of industries, mainly for fluid transport, including the transport of oil, natural gas, natural gas, water and certain solid materials. Compared with solid steel materials such as round rods, seamless steel pipes are lighter in weight while maintaining similar yield strength and tensile strength, making them economically viable structural and mechanical components. They are commonly used in the manufacture of structural elements and mechanical components such as oil drill pipe, car drive shafts, bicycle frames and steel scaffolding used in construction.

In addition, seamless steel pipes are essential in the production of a variety of conventional weapons, including gun barrels and barrels. According to the different shape of the cross-sectional area, it can be divided into round tubes and special-shaped tubes. Circular pipes are preferred for fluid transfer because they have the largest circular area, allowing for higher fluid transfer efficiency.

However, compared to square or rectangular tubes, round tubes have limitations, especially in terms of resistance to plane bending. Therefore, square or rectangular tubes are commonly used in agricultural machinery frames, steel and wood furniture, and other applications that require greater bending strength. In addition, depending on the specific requirements, other types of shaped steel pipes may be required for different purposes.

1. Structural seamless steel pipe: used for general structural and mechanical purposes.
2. Seamless steel pipe for fluid transport: used for transporting water, oil and gas.
3.Medium and low pressure boiler seamless steel pipe: used to manufacture various structural parts of medium and low pressure boilers, such as superheated steam pipes, boiling water pipes, steam locomotive boiler superheated steam pipes, etc.
4. High-pressure boiler seamless steel pipe: used to manufacture high-pressure water pipes for boilers, made of high-quality carbon steel, alloy steel, stainless steel heat-resistant steel.
5. Seamless steel pipe for fertilizer equipment: suitable for chemical equipment and pipelines with temperature of -40℃~ 400℃ and pressure of 10 ~ 30mpa.
6. Seamless steel pipes for petroleum cracking: furnace tubes, heat exchangers, pipelines, etc., for refining and chemical devices.
7. Geological drilling tools: Provide drill pipe, drill bit, core tube, casing, sinking tube and so on for geological drilling.
8. Diamond core drill pipe: diamond core for drill pipe, core rod, casing.
9. Oil drill pipe: used for oil drilling, the inner and outer ends are thickened. These pipes may be threaded or welded.
10. Marine carbon steel seamless steel pipe: Marine carbon steel seamless steel pipe, including i class pressure pipe system, ii class pressure pipe system and Marine boiler, superheater with carbon steel seamless steel pipe.
11. Seamless steel pipe for automobile axle sleeve: used to manufacture automobile axle sleeve and drive axle housing tube made of high-quality carbon structural steel and alloy structural steel.
12. Diesel engine high pressure oil pipe: suitable for diesel engine fuel injection system high pressure oil pipe, using cold drawn seamless steel pipe.
13. Precision inner diameter seamless steel pipe for hydraulic and pneumatic cylinders: suitable for hydraulic and pneumatic cylinders with higher inner diameter size requirements.
14. Cold-drawn or cold-rolled precision seamless steel pipe: used for mechanical structure and hydraulic equipment, with high dimensional accuracy and surface finish.
15. Stainless steel seamless steel pipe for structure: widely used in chemical, petroleum, textile, medical, food, machinery and other industries of corrosion resistant pipes and structural parts.
16. Stainless steel seamless steel pipe for fluid transport: used for transporting fluids in corrosive environments.
17. Shaped seamless steel pipe: including all non-round pipes, including equal wall thickness shaped seamless steel pipe, unequal wall thickness shaped seamless steel pipe and variable diameter shaped seamless steel pipe. These pipes are widely used in a variety of structural components, tools and mechanical parts, and they have higher bending and torsional resistance compared to circular pipes, and can reduce the weight of the structure.