ST52 Honed Tubes Deliver High Precision and Reliability for Hydraulic and Pneumatic Applications

ST52 honed tubes continue to gain recognition in the global market as a preferred choice for hydraulic cylinders, pneumatic systems, and other precision engineering applications. Combining excellent mechanical properties with a superior internal surface finish, ST52 honed tubes provide the performance and durability required in demanding industrial environments.

Core Features and Advantages

ST52 honed tubes are manufactured from high-quality ST52 steel, which offers a strong balance of strength, toughness, and weldability. The honing process produces an exceptionally smooth internal surface with tight dimensional tolerances, reducing friction and improving seal performance in hydraulic and pneumatic cylinders. Key advantages include high dimensional accuracy, excellent surface finish, consistent roundness, and reliable mechanical properties. These characteristics help extend component service life, reduce maintenance costs, and improve overall system efficiency.

Processing Technology

The production of ST52 honed tubes involves precision cold drawing followed by a controlled honing process. Cold drawing improves dimensional accuracy and surface quality, while honing further refines the internal surface to achieve the required roughness and tolerance levels. Advanced honing equipment and strict process control ensure uniform quality across every batch.

Production Process

The manufacturing process begins with the selection of high-quality ST52 steel billets. The material is then processed through cold drawing to achieve the desired dimensions and mechanical properties. After cold drawing, the tubes undergo honing, where abrasive stones are used to remove a thin layer of material from the internal surface, creating a smooth, precise finish. Finally, the tubes are inspected, cut to length, and prepared for delivery according to customer specifications.

Technical Parameters

ST52 honed tubes are available in a wide range of sizes to meet diverse application requirements. Typical technical parameters include:

  • Material: ST52 / E355 / 1.0580
  • Outer Diameter: 40 mm – 400 mm
  • Inner Diameter: 30 mm – 350 mm
  • Wall Thickness: 5 mm – 50 mm
  • Internal Surface Roughness: Ra 0.2 – 0.4 μm
  • Tolerance: H8 / H9
  • Length: Up to 12 meters

Global Market Reach

With a strong focus on quality and customer satisfaction, ST52 honed tubes are exported to more than 20 countries and regions, including India, Turkey, Vietnam, and Malaysia. The growing demand from these markets reflects the product’s reliability and the company’s commitment to meeting international standards.

As industries continue to demand higher precision and longer service life from hydraulic and pneumatic components, ST52 honed tubes are expected to remain a key material choice for manufacturers worldwide.


Post time: Sep-28-2026