1. High-Quality Raw Materials Our raw materials are primarily sourced from renowned steel mills such as Jiangsu BOS Hydraulic Technology Co., Ltd., Baosteel, Ansteel, and Changjiang Steel Pipe.
2. Advanced Production Equipment Our manufacturing facilities include cold drawing machines, honing machines, skiving and roller burnishing machines, straightening equipment,polishing machines, heat treatment furnaces, grinding machines, and more.
3. Rich production experience, strict quality control We implement a professional internal quality control system to conduct comprehensive inspections on all products.
BOS Hydraulics is a professional hydraulic manufacturer equipped with in-house facilities producing honed tubes and chrome-plated rods.
Contact us for quotations on standard product lines of honed tubes and chrome-plated rods.
We specialize in bespoke solutions – a core competency of our operation. For custom requirements, we strongly encourage you to reach out to our engineering team.
Manufacturing high-precision carbon steel honed tubes is a precise and complex process. It typically begins with high-quality carbon steel material, such as SAE1010, SAE1020, ST35, ST37.4, or ST52.

The production process includes cold drawing, finishing, and the most critical finishing method—honing. Honing is performed at low cutting speeds, achieving high accuracy, high surface quality, and long life on the workpiece surface.
This treatment not only improves the product’s dimensional accuracy and surface finish, but also significantly enhances its mechanical properties, enabling high-precision carbon steel honed tubes to withstand higher pressures and loads.
High-precision carbon steel honed tubes have several outstanding properties, making them the material of choice in numerous applications:

The high dimensional accuracy ensures smooth operation of hydraulic systems and precision machinery, reducing friction and energy loss. The honed inner surface is exceptionally smooth with minimal surface roughness, reducing seal wear and extending the life of the entire system.
In addition, the carbon steel material provides excellent strength and durability, enabling High Precision Carbon Steel Honed Tubes to withstand high pressures and heavy loads while maintaining excellent fatigue resistance and toughness.
High Precision Carbon Steel Honed Tubes have an extremely wide range of applications, covering virtually all industries requiring high-precision, high-quality tubing:

In hydraulic and pneumatic systems, they serve as cylinder barrels, providing a smooth inner surface that reduces friction and wear, ensuring efficient system operation. The automotive industry utilizes High Precision Carbon Steel Honed Tubes extensively in transmission systems, shock absorbers, and other precision components.
Construction machinery such as excavators, loaders, and cranes rely on these high-precision tubes for reliable operation of their hydraulic systems. Furthermore, in precision machinery manufacturing, these tubes are used in linear motion systems, guide components, and support structures to ensure precise movement and long-term stability.
To ensure the quality of high-precision carbon steel honed tubes, the production process must adhere to strict international technical standards such as DIN 2391, DIN 17175, EN 10305, ISO 8535, GB/T 8713, and GB/T 8163.
High-quality honed tubes typically have dimensional tolerances within 0.03mm and surface roughnesses of Ra 0.4 to 0.05μm, meeting the specific requirements of various applications.
Many manufacturers are also certified to ISO 9001 and ISO 14001 management systems to ensure standardized production processes and consistent product quality.
Choosing the Right High-Precision Carbon Steel Honed Tubes
When selecting the right high-precision carbon steel honed tubes, several factors should be considered:
Dimensional Accuracy Requirements: The required dimensional tolerances and roundness requirements are determined by the application. Surface Roughness Requirements: Different hydraulic systems or mechanical structures have different surface smoothness requirements. Material Certification: Ensure that the material complies with relevant international standards and quality certification requirements. Application Environment: Consider the corrosive, temperature, and pressure factors in the operating environment and select the appropriate surface treatment.
With the continuous advancement of industrial technology, the requirements for high-precision carbon steel honed tubes are also increasing:
The demand for higher precision will continue to grow, driving further improvements in honing technology. The application of new materials will expand the application range of honed tubes and meet the needs of specialized environments. The increasing demand for customization will require manufacturers to offer a wider range of specifications and sizes. Environmental and sustainable development requirements will influence production processes and material selection, driving the development of more environmentally friendly production technologies and surface treatments.
As high-precision mechanical components, high-precision carbon steel honed tubes play an indispensable role in modern industry. Their exceptional dimensional accuracy, excellent surface quality, and service life make them the material of choice for precision machinery design and manufacturing.