Products Description
Cold Drawn Seamless Steel Tube, also known as CDS seamless tube, is manufactured by cold drawing hot finished seamless steel blank under room temperature. Compared with hot rolled seamless tube, it features higher dimensional accuracy, smooth inner and outer surface, uniform mechanical performance and excellent pressure resistance.
We support custom cutting, end processing, heat treatment. All products can pass hydrostatic test, UT test and PMI spectrum inspection. Material Test Certificate (MTC) will be supplied together with goods. As a professional manufacturer, we provide stable quality, competitive price and fast delivery for global buyers. Welcome to contact us for quotation and technical data sheet.
Basic Product Information
| Item | Content |
| Product Name | Cold Drawn Seamless Steel Tube |
| Alias Name | Cold Drawn Seamless Tube, CDS Tube, Precision Cold Drawn Seamless Tubing, Cold Drawn Seamless Steel Pipe |
| Production Process | Cold drawn from hot finished seamless mother tube, room temperature cold drawing process |
| Section Shape | Round |
| Material Grade | Carbon Steel: 10#,20#,45#,Q345, A106 Gr.B, A519 1018/1026; Alloy Steel: 20Cr,40Cr,42CrMo, E235,E355 |
| Executive Standards | ASTM A519, ASTM A179, ASTM A106, EN 10305-1, DIN 2391, GB/T3639 |
Technical Specifications
| Item | Content |
| Outer Diameter (OD) | 6mm – 325mm, customized |
| Wall Thickness (WT) | 0.8mm – 25mm, customized |
| Length | 4m – 12m, fixed cut length, random length, customized |
| Tolerance | OD: ±0.1~±0.3mm; WT: ±0.05~±0.3mm |
| Surface Finish | Bright drawn, black surface, oiled, pickling |
| Delivery Condition | BK (bright drawn), GBK (annealed), NBK (normalized), SR (stress relieved) |
Product Advantages
| Advantage Item | Details |
| High Dimensional Precision | Strict tolerance, smooth inner & outer surface without oxide layer |
| High Pressure Resistance | No welding seam, good tightness, no leakage under high pressure |
| Good Machinability | Uniform structure, easy for cutting, bending, drilling and further machining |
| Stable Mechanical Property | Higher tensile strength, uniform mechanical performance after cold drawing |
| Custom Service | Custom sizes, heat treatment, cutting, end machining available |
| Quality Traceable | PMI test, hydrostatic test, ultrasonic test, MTC material test certificate provided |
Application Fields
| Application Industry | Usage Details |
| Hydraulic & Pneumatic System | Hydraulic cylinder tube, air cylinder precision liner |
| Machinery Manufacturing | Mechanical structural parts, automotive spare parts |
| Oil & Gas | Fluid transmission pipe, instrument tubing |
| Heat Exchanger | Condenser & heat transfer equipment tube |
| Construction & Engineering | Precision structural hollow bar |
| Automotive Industry | Chassis components, engine precision parts |
Packing & Shipment
| Item | Content |
| Packaging | Bundled with steel strips, plastic cap at both ends, waterproof wrapping; wooden case for small sizes |
| Trade Term | EXW, FOB, CFR, CIF |
| MOQ | 1 Ton |
| Delivery Time | 7–15 working days for stock, 20–30 days for custom production |
| Certificate | ISO9001, MTC, PMI inspection report |
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