High-Precision Cold Drawn Seamless Tubes (CDS) Manufacturer
Cold Drawn Seamless (CDS) tube is a highly specialized steel tubing produced by piercing hot billets and subsequently cold drawing them over a mandrel. This cold working process ensures exceptional dimensional accuracy, excellent surface finish, and significantly enhanced mechanical properties (higher tensile and yield strength).
As a trusted factory, we manufacture seamless precision steel tubes that meet strict global standards including ASTM A519, EN 10305-1, and DIN 2391-2. Our CDS tubes are widely utilized in critical applications such as hydraulic and pneumatic cylinders, automotive parts, heavy machinery, and structural engineering.
Tight Tolerances: Strict control over Outside Diameter (OD) and Inside Diameter (ID).
Superior Surface: Smooth finish minimizing the need for further machining.
Enhanced Strength: Cold drawing increases hardness and yield strength.
Custom Sizes: Extensive size range from OD 10mm to 325mm.
Hydraulic cylinder barrels (Ready to hone tubes)
Pneumatic cylinder parts
Mechanical sleeves, bushings, and axles
Automotive shock absorbers and steering parts
| Standard | Material Type | Typical Steel Grades Available |
|---|---|---|
| ASTM A519 | Carbon Steel | SAE 1010, 1020, 1026, 1045, 1518, 1524, 1541 |
| Alloy Steel | SAE 4130, 4140, 4145, 4340, 8620 | |
| EN 10305-1 | Non-Alloy / Carbon | E195, E235, E355, C45E |
| Alloy Steel | 42CrMo4, 25CrMo4, 34CrMo4 | |
| DIN 2391-2 | Precision Steel | ST35, ST45, ST52 |
Need custom dimensions or specific mechanical properties (+C, +SR, +A)? Browse our product list below or contact us directly for a customized solution.