Honed Tube – The Ultimate FAQ Guide
A Honed Tube is a precision cold-drawn seamless tube with a finely finished inner surface, achieved through a honing process. This creates a smooth, cross-hatched texture ideal for hydraulic and pneumatic cylinders, ensuring minimal friction, superior seal performance, and extended service life. Its excellent geometric accuracy guarantees reliable, efficient operation in demanding industrial applications.
What materials are commonly used for honed tubes?
Common materials include:
Carbon steel (e.g., ST52, 1020, 1045)
Alloy steel (e.g., 4130, 4140)
Stainless steel (e.g., 304, 316)
The choice depends on application requirements such as strength, corrosion resistance, and operating environment.
What is the difference between honed tubes and skived & roller burnished (SRB) tubes?
Honed tubes are finished using abrasive stones that create a precise, cross-hatched surface, while SRB tubes are processed using a cutting tool (skiving) followed by a burnishing roller. Honed tubes generally provide better surface finish and straightness, while SRB tubes can be more cost-effective for certain applications.
What are the standard tolerances for honed tubes?
Standard tolerances include:
Inner Diameter: H8 or H9
Straightness: Typically 1:2000 or better
Wall Thickness: Varies by application but usually within ±10%
How should honed tubes be stored and handled?
Store vertically or on properly supported racks
Keep protective end caps in place until installation
Maintain a clean, dry storage environment
Use appropriate lifting equipment to prevent bending
What quality certifications are available for honed tubes?
Reputable manufacturers typically provide:
Material certificates (3.1/3.2)
Dimensional inspection reports
Surface roughness test reports
Compliance with international standards (ISO, DIN, ASTM)
