Mini Diameter Spiral Welded Pipe

For applications demanding precision fluid conveyance, structural integrity in compact designs, and reliable performance in constrained spaces, small-diameter spiral welded pipes are the preferred engineering solution. Our range of high-quality Small Size Spiral Welded Pipe is engineered for durability and efficiency. We also offer versatile Small Bore Spiral Welded Tube options designed for specialized systems. When strength-to-size ratio is critical, our robust Small Caliber Spiral Steel Pipe provides an excellent balance. For the most space-sensitive installations, our precision-manufactured Narrow Diameter Spiral Welded Tube delivers uncompromised performance. Each product is manufactured using advanced spiral welding technology, ensuring superior seam strength and dimensional consistency compared to traditional longitudinal welded pipes.


The manufacturing process of our Mini Diameter Spiral Welded Pipe involves forming a continuous strip of steel into a spiral shape and welding the seam along the entire length. This method creates a pipe with a uniform, strong weld that distributes stress more evenly. Key technical parameters defining our product line include:

  • Outer Diameter (OD): Ranges from 20 mm (0.79 inches) to 150 mm (5.91 inches).
  • Wall Thickness: Available from 2.0 mm to 6.0 mm, depending on the diameter and required pressure rating.
  • Standard Length: Typically supplied in 6-meter or 12-meter lengths; custom lengths are available upon request.
  • Material Grades: Manufactured from carbon steel (ASTM A53, A106), low-alloy steel, or according to specific international standards (API, DIN, JIS).
  • Welding Process: Utilizes Submerged Arc Welding (SAW) for high-quality, consistent, and defect-free seams.
  • Surface Treatment: Options include black (mill finish), painted, galvanized, or coated with epoxy or polyethylene for corrosion protection.
  • Tolerances: Strict adherence to dimensional tolerances for outer diameter (±0.5% or as per standard), wall thickness (±10%), and straightness.

The following table provides a quick reference for standard specifications of our Mini Diameter Spiral Welded Pipe:

Nominal Bore (mm) Common Outer Diameter (mm) Standard Wall Thickness (mm) Approximate Weight (kg/m) Common Pressure Rating
25 33.7 2.5 - 3.2 1.9 - 2.4 Medium
50 60.3 2.8 - 3.6 4.0 - 5.0 Medium
80 88.9 3.2 - 4.0 6.8 - 8.4 Medium to High
100 114.3 3.6 - 4.5 9.8 - 12.2 Medium to High
150 168.3 4.0 - 6.0 16.2 - 24.0 High

These pipes undergo rigorous non-destructive testing (NDT), including ultrasonic testing and hydrostatic pressure tests, to ensure they meet or exceed industry standards for quality, safety, and longevity. Their primary applications include instrumentation lines, pneumatic conveying systems, structural components in furniture and machinery, irrigation systems, and various industrial process lines where space is limited but performance cannot be compromised.

Hot Products

  • Galvanized Steel Pipe

    Galvanized Steel Pipe

    Galvanized Steel Pipe is an indispensable material in modern industry and construction field. Tianjin Xinlida Steel Pipe Co., Ltd. specializes in producing galvanized steel pipe with excellent performance in quality and specification.Tianjin Xinlida production of galvanized steel pipe implementation of strict standards, common GB/T 3091 - 2015 "welded steel pipe for low pressure fluid transmission", this standard ensures that the pipe in the low pressure fluid transmission performance stability, can safely and efficiently transport water, gas and other media.
  • Galvanized Cold-Rolled Seamless Steel Pipe

    Galvanized Cold-Rolled Seamless Steel Pipe

    Xinlida's China Galvanized Cold-Rolled Seamless Steel Pipe is a seamless steel pipe produced by the cold-rolling process. Compared with hot-rolled steel pipes, the cold-rolling process endows it with higher precision and better surface quality. The wall thickness of its pipes is uniform and the dimensional accuracy is high. Generally, the outer diameter tolerance is controlled within ±0.1mm, and the wall thickness tolerance is about ±0.05mm. It can meet the demands of high-precision processing. Meanwhile, the surface of cold-rolled seamless steel pipes is smooth, which reduces the resistance of fluid flow in the pipeline and improves the transportation efficiency. They are widely used in industries such as petroleum, natural gas, chemical engineering, boilers, and mechanical manufacturing.
  • Black Seamless Steel Pipe

    Black Seamless Steel Pipe

    Xinlida supplier Black Seamless Steel Pipe is a seamless hollow circular steel made by hot-rolling process. With its own characteristics, it has been widely used in multiple industries such as petroleum, chemical engineering, power, mechanical manufacturing, and construction.
  • Galvanized Square And Rectangular Steel Pipe

    Galvanized Square And Rectangular Steel Pipe

    Xinlida’s China Galvanized Square And Rectangular Steel Pipe is square or rectangular section steel pipe, the surface after hot galvanizing treatment.This treatment gives it excellent corrosion resistance, rust resistance, greatly extending the service life.Moreover, hot-dip galvanizing also enhances the hardness of steel pipes, so that they can maintain stable performance in complex environments.
  • Hot-Dip Galvanized Square and Rectangular Tubes

    Hot-Dip Galvanized Square and Rectangular Tubes

    Tianjin Xinlida Steel Pipe Co., Ltd. has been deeply involved in the steel pipe industry for many years, establishing an integrated business structure encompassing domestic production, overseas bases, and global trade. Leveraging its formal import and export qualifications, the company has cultivated the cross-border trade market, with products exported to Southeast Asia, the Middle East, and other regions. Equipped with intelligent production equipment, the company boasts an annual production capacity of 50 million tons. Its production processes and equipment meet international standards, with its Hot-dip galvanized square and rectangular tubes being a primary export product. The core advantages of this pipe lie in its excellent corrosion and rust resistance and robust workmanship, perfectly meeting the needs of various overseas engineering, construction, energy, and transportation projects. The factory also supports flexible order adjustments and customized processing, maintaining ample stock and efficient delivery. This effectively solves procurement challenges for buyers, such as unstable supply, specification discrepancies, tight deadlines, and the susceptibility to rust and loss of outdoor pipes, making it a reliable choice for domestic and international customers procuring square and rectangular tubes.
  • Small Diameter Galvanized Oval Tube

    Small Diameter Galvanized Oval Tube

    In the field of architectural decoration, Xinlida’s China Small Diameter Galvanized Oval Tube has a unique performance.Its small and flexible, unique oval section is beautiful and generous, often used to make exquisite railings, handrails, etc., adding elegant temperament to the building and becoming a beautiful landscape in the building.

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept