ST52 DIN2391 Tolerance H8 Honed Steel Tube for Hydraulic Systems
ST52 DIN2391 Tolerance H8 Honed Steel Tube for Hydraulic Systems offered by China manufacturer zhaotu machinery. Buy ST52 DIN2391 Tolerance H8 Honed Steel Tube for Hydraulic Systems directly with low price and high quality.
What is a Honed Tube?
The honing process uses abrasive polishing stones and abrasive paper to remove small amounts of material from the inner surface of a tube.
Our honed tubes are produced using Drawn Over Mandrel (DOM) and Cold Drawn Seamless (CDS) processes, ensuring consistent quality and dimensional accuracy.
Honed Tube Technical Specifications
Parameter | Value |
Raw Material | DIN ST52, SAE1020 |
Pressure& Temperature Classification | High pressure & temperature piping |
Inner Diameter (ID) | 20 mm – 320 mm |
Outer Diameter (OD) | 50 mm – 400 mm |
Wall Thickness | 5 mm – 40 mm |
Standard Length | Up to 12,000 mm |
Straightness | Max 0.5 mm / 1,000 mm |
Inside Surface Roughness (Ra) | 0.2 – 0.4 µm |
ID Tolerance | DIN2391 H8 |
Note: Custom sizes and non-standard dimensions are available upon request. Please contact us with your specifications.
Our Manufacturing Process
As a vertically integrated manufacturer, we control every step of production:
Cold Drawing – precision seamless tube forming
Heat Treatment – for optimal mechanical properties
Honing – precision ID finishing
Skiving & Boring – for large diameter tubes
Peeling, Grinding & Polishing – for chrome rod production
Our facility is equipped with over 60 advanced machines and staffed by 70+ skilled technical workers, achieving an annual output exceeding 20,000 tons.
Packaging & Delivery
We ensure your honed tubes arrive in perfect condition:
Standard export packaging (wooden crates or steel-framed bundles)
Anti-rust treatment applied
End caps to protect internal surfaces
Custom packaging available upon request
Why Choose Us as Your Honed Tube Supplier?
✅ Professional & Experienced – 18+ years in hydraulic component manufacturing
✅ One-Stop Collection – Honed tubes, chrome rods, and casting cylinder components
✅ Full Range of Sizes & Materials – Ready stock for fast delivery
✅ Customizable – Non-standard sizes and specifications accepted
✅ Small Quantity Acceptable – No minimum order quantity for many items
✅ Quality Guarantee – Refund or replacement for any quality issues
✅ 1-Year Warranty – From manufacturing date
FAQ – Frequently Asked Questions
Q: What is your delivery time?
A: Standard delivery is within 30 days. For urgent orders, we can deliver in as little as 15 days.
Q: Are you a factory or a trading company?
A: We are a direct factory with our own production facilities, quality control, and R&D team.
Q: What is your guarantee period?
A: We provide a one-year warranty from the manufacturing date. If any items are rejected due to quality issues, we will resupply or refund.
Q: Can you produce non-standard sizes?
A: Yes. We accept custom sizes and specifications based on your drawings or samples.
Q: Do you have ready stock?
A: Yes, we maintain inventory of popular sizes for fast delivery.
Contact Us
Looking for a reliable honed tube manufacturer for your hydraulic cylinder projects? Send us your drawing or specifications for a prompt quotation.
