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Hydraulic Cylinder Seamless Steel Tube
For Hydraulic & Pneumatic Cylinders – OD 5-256mm – NBK / BK Condition
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Hydraulic Cylinder Seamless Steel Tube – OD 5-256mm
Hydraulic Cylinder Seamless Steel Tube
For Hydraulic & Pneumatic Cylinders – OD 5-256mm – NBK / BK Condition
Product Overview
Wuxi Hengzhihui supplies seamless steel tubes specifically designed for hydraulic and pneumatic cylinders. With outer diameters from 5mm to 256mm, these tubes can be supplied in NBK (normalized) or BK (cold drawn/hard) conditions to meet various pressure requirements.
✅ Cylinder grade – High strength, excellent surface finish
✅ OD range – 5mm – 256mm – covers small to medium cylinders
✅ Wall thickness – 2mm – 20mm
✅ Delivery conditions – NBK (normalized, best weldability), BK (cold drawn, highest strength)
✅ Honing service – Internal surface finish up to Ra 0.2μm
✅ Materials – 20#, 45#, ST52, E355, 42CrMo4
Key Specifications
| Parameter | Details |
|---|---|
| OD Range | 5mm – 256mm |
| WT Range | 2mm – 20mm |
| Yield Strength (NBK) | ≥245 MPa (20#) / ≥355 MPa (ST52) |
| Yield Strength (BK) | ≥450 MPa (ST52) |
| Hardness | 150-220 HB |
| Surface (honing) | Ra ≤0.2μm – 0.4μm |
Applications
Hydraulic cylinders (excavators, loaders, forklifts)
Pneumatic cylinders
Industrial hydraulic systems
Agricultural machinery cylinders
Contact
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: /
Contact Person: Alice Yuan
Tags: Hydraulic Cylinder Tube Seamless Cylinder Tube E355 ST52 OD 5-256mm
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