Small-diameter seamless pipes are typically defined as seamless pipes with an outer diameter ranging from 4 mm to 89 mm. These pipes are widely used in mechanical structures, hydraulic equipment, and various mechanical parts due to their high dimensional accuracy and smooth surface finish. By using precision seamless pipes, manufacturers can save significant machining time, increase material efficiency, and enhance overall product quality.
These pipes have broad applications across numerous industries, with specifications and uses varying by field. Below is a detailed introduction to the specifications and common uses of small-diameter seamless steel pipes to help better understand their diverse applications.
Specifications of Small-Diameter Seamless Pipes:
The specifications of small-diameter seamless pipes generally refer to their outer diameter and wall thickness. Typically, the outer diameter ranges from 4 mm to 89 mm, while the wall thickness falls between 2 mm and 10 mm. Specific examples of pipe dimensions and uses are as follows:
- Water Pipes
Small-diameter seamless pipes are frequently used for water piping, with size varying according to the application. For household water systems, pipes with an outer diameter of 20 mm to 30 mm and a wall thickness of 2 mm to 3 mm are common. In contrast, industrial water systems might require pipes with an outer diameter of 50 mm to 100 mm and a wall thickness of 3 mm to 5 mm.
- Oil Pipes
These pipes are also used in oil transportation systems. For hydraulic systems, pipes with an outer diameter of 12 mm to 38 mm and a wall thickness of 1 mm to 2 mm are typical, while for aviation applications, pipes with an outer diameter of 20 mm to 60 mm and a wall thickness of 2 mm to 4 mm are used.
- Air Pipes
Air pipes made from small-diameter seamless steel depend on the pressure and flow rate of the gas. Typically, the outer diameter ranges from 12 mm to 50 mm, with a wall thickness of 1 mm to 3 mm.
- Electrical Pipes
For electrical conduits, the outer diameter and wall thickness are determined by the cable size and voltage. Electrical pipes usually have an outer diameter of 15 mm to 40 mm and a wall thickness of 2 mm to 4 mm.
Applications of Small-Diameter Seamless Pipes:
The range of applications for small-diameter seamless pipes is extensive, with their uses depending on the material and specifications. Here are some of the most common application areas:
- Construction Industry
Small-diameter seamless pipes are often used in construction for structural components like brackets, supports, and hangers, as well as pipelines and electrical conduits. In high-rise buildings, they are utilized to support structures such as elevator rails and stair handrails.
- Machinery Manufacturing
In the machinery manufacturing sector, small-diameter seamless pipes are used to produce various mechanical parts. For example, in the automotive industry, they are employed to build car bodies, chassis, and other components. In the aerospace industry, they are used to manufacture airplane fuselages, wings, and related parts.
- Petrochemical Industry
Small-diameter seamless pipes are also prevalent in petrochemical applications, including the manufacture of pipelines, containers, and reactors. In oil extraction, these pipes are used for casing, drilling, and oil transport. In chemical production, they are employed in the construction of reactors, storage tanks, and other equipment.
- Power Industry
In the power industry, small-diameter seamless pipes are used for cable conduits, brackets, and various infrastructure components. In urban power grid systems, they serve as cable supports and conduits, while in thermal power plants, they are used for boiler pipes, heat exchangers, and other critical equipment.
Conclusion:
Small-diameter seamless pipes are highly versatile, with their specifications and uses varying depending on the field of application. Understanding these specifications and their potential uses allows for better selection and more effective use of these materials in various industries.
United Steel Industry As the most important steel pipe manufacturer and exporter in China, in the past 20 years, we have completed more than 100 projects, with partners in more than 100 countries, and established relationships with oil and gas and EPC companies in many countries business relationship.
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