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Quick Details
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Place of Origin:
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Shandong, China
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Outer Diameter:
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3 - 140 mm
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Thickness:
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0.5 - 20 mm
Quick Details
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Section Shape:
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Round
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Surface Treatment:
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Black or bright
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Tolerance:
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±5%
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Place of Origin:
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Shandong, China
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Outer Diameter:
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3 - 140 mm
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Thickness:
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0.5 - 20 mm
seamless hydraulic pipe
seamless hydraulic pipe, also called CDS tube, is made from the hot billets by piercing, subsequent rolling, and elongating process to be passed through the die over a mandrel plug and finally to reach the designed accurate diameter and wall thickness. Cold Drawn Seamless (CDS) manufacturing process can greatly increase the strength of the seamless steel pipe and makes it very suitable for critical high safety and high performance applications. WAN Steel brand cold drawn seamless pipes are made of high quality raw material by automatic production line with strict quality control. Our CDS tubes have high dimensional tolerances, excellent section features, better surface finish and higher mechanical properties than the corresponding grades of hot finished seamless steel tubes.WAN Steel manufactures and wholesales many types of cold drawn seamless tube available for mechanical and hydraulic applications.
| Outside Diameter | 3mm-140mm |
| Thickness | 0.5-20mm |
| Material | 10#, 20#, 35#, 45#, 16Mn, 30CrMo, 20Cr, 20CrMo,15CrMo, 35CrMo, 42CrMo4, 20Mn, ST35,ST37,E235, ASTM11A, ST45, E255, A106A.B, ST55, CK45, S45C, Q345B, ST52, E355, S355j2, 4130, 4140, 4340, SCM440, SCM415 |
| Surface | Black or bright |
| Standard | GB/T8713, GB/T3639, GB/T8162, GB/T8163, ASTM-A519, EN10305-1, EN10305-4, JIS-G3445, DIN2391, BS6323, GOST8734-75 |
| Processing | Cold rolled /cold drawn |
| Delivery Condition |
(1) BK (+C): No heat treatment after last cold forming process; (2) BKW (+LC): After last heat treatment there is a light finishing pass (cold drawing); (3) BKS (+SR): After the final cold forming process the tubes are stress relieve annealed; (4) GBK (+A): After the final cold forming process the tubes are annealed in a controlled atmosphere; (5) NBK (+N): After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. |
| Packing | Woven bag/ wooden or crate carton/ bundle packing/ plain end or vanished as per customer’s request. |
| Delivery time | Normally 15-25 working days |
- Superior surface finish
- High precision
- Tight tolerances
- High strength
- High hardness
- Good size accuracy
- Excellent micro-structure uniformity
- No oxide layer of inside and outside wall
- No leakage under great pressure
- Cold bending without deformation
- Flaring, shrinkage and flattening without cracks
- Enhanced machinability
Seamless cold drawn steel tube is ideal for hydraulic application such as hollow chrome plated telescopic cylinders and hydraulic rods, or large bore, heavy walled, high pressure hydraulic cylinders, etc. It is also widely used for heavy equipment manufacturing industries such as cranes and garbage trucks.
