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Precision Cold Drawn Seamless Tube – High Dimensional Accuracy
Precision Cold Drawn Seamless Steel Tube
OD 5-120mm | Tight Tolerances | Hydraulic & Pneumatic Applications
Product Overview
Our cold drawn seamless precision tubes are manufactured through a cold drawing process that ensures tight dimensional tolerances, excellent surface finish, and consistent wall thickness. Ideal for hydraulic cylinders, pneumatic systems, and precision machinery.
✅ Cold drawn process – Superior surface finish (Ra ≤0.8μm)
✅ Tight tolerances – OD tolerance ±0.05mm, WT tolerance ±0.10mm
✅ Size range – OD 5mm – 120mm
✅ Wall thickness – 0.5mm – 15mm
✅ Materials – 20#, 45#, Q345, 40Cr, ST52, E355
✅ Standards – DIN 2391, EN 10305, GB/T 3639
Key Specifications
| Parameter | Details |
|---|---|
| OD Range | 5mm – 120mm |
| WT Range | 0.5mm – 15mm |
| OD Tolerance | ±0.05mm – ±0.15mm |
| Surface Finish | Ra ≤0.8μm (as-drawn) / Ra ≤0.4μm (honed) |
| Delivery Condition | BK, BKW, NBK, +C, +SR |
Applications
Hydraulic cylinder barrels
Pneumatic cylinder tubes
Shock absorber tubes
Precision shafts and guide tubes
Automotive steering components
Why Choose Our Precision Tubes?
| Advantage | Description |
|---|---|
| Ready to use | No additional machining required |
| High strength | Cold working increases material strength |
| Good formability | Can be bent, flared, and expanded |
Contact
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: /
Contact Person: Alice Yuan
Tags: Precision Steel Tube Cold Drawn Tube Hydraulic Cylinder Tube EN 10305 DIN 2391
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