Dexin is a trusted manufacturer and supplier of large-diameter seamless steel pipes, serving over 3,000 industrial clients, distributors, and exporters worldwide. We wholesale high-quality seamless steel pipes in bulk and offer fast delivery services. Dexin Steel Tube (China) Co., Ltd. also provides customized solutions, including specific pipe specifications, certifications, and processing options. Partnering with Dexin, you will receive reliable, certified steel products, ensuring efficient, safe, and worry-free operations.
Large diameter cold drawn seamless pipes are high-precision steel pipes manufactured without welding, using a cold drawing process to achieve superior strength, dimensional accuracy, and smooth surface finish. These pipes typically range from 219mm to 1420mm in outer diameter and 6mm to 60mm in wall thickness. They are made from carbon steel, alloy steel, or stainless steel and are widely used in oil and gas, power generation, construction, and heavy machinery industries where durability and precision are critical. Cold drawing enhances mechanical properties, reduces tolerances, and ensures consistent quality for demanding industrial applications.
Dexin cold drawn seamless pipes are manufactured in compliance with ASTM, EN, and DIN standards.
Large-diameter cold-drawn seamless steel pipes manufactured for high dimensional accuracy, smooth surface finish, and consistent mechanical properties.
Cold drawn seamless pipes designed for pressure-bearing applications where strength consistency and precise wall thickness control are critical.
Precision cold-drawn seamless steel pipes widely used in mechanical engineering, machining, and equipment manufacturing.
Cold-drawn seamless steel pipes offering improved strength and dimensional stability for structural and load-bearing applications.
Cold drawn alloy seamless pipes produced for applications requiring enhanced heat resistance, strength, and material stability.
Customized cold drawn seamless steel pipes manufactured to specific diameters, wall thicknesses, and international standards.
Contact our consultants to explore more specifications and solutions.
Dexin cold-drawn seamless pipes are manufactured through a precision cold drawing process, ensuring superior dimensional accuracy, mechanical strength, and surface quality. Compared with hot-finished pipes, cold-drawn seamless pipes offer tighter tolerances and more consistent performance, making them ideal for high-demand industrial applications.
Dexin cold-drawn seamless pipes comply with international standards such as ASTM, EN, and DIN, and can be supplied with mill test certificates (EN 10204 3.1), dimensional inspection reports, and third-party testing upon request.
Contact AkoetechDexin cold-drawn seamless (CDS) pipes provide a systematic material solution for applications requiring high dimensional accuracy, consistent mechanical performance, and reliable pressure resistance. Through controlled cold drawing and precision finishing, each pipe is engineered to meet strict industrial and engineering requirements.
Compared with hot-finished seamless pipes, Dexin CDS pipes offer superior dimensional consistency, higher strength-to-weight efficiency, and improved surface quality, helping reduce overall processing time and long-term operational costs.
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Specifications and parameters of our industrial cold-drawn seamless steel pipes
| Category | Parameter | Specification |
| Product Overview | Product Name | Cold Drawn Seamless Steel Pipe (CDS) |
| Manufacturing Process | Hot finished seamless pipe → Cold drawing | |
| Delivery Condition | +SR / +A / +N (as required) | |
| Surface Finish | Smooth, pickled, oiled | |
| Shape | Round | |
| Length Type | Random length or fixed length | |
| Size Range | Outside Diameter (OD) | 6 mm – 114 mm |
| Wall Thickness (WT) | 0.8 mm – 12 mm | |
| Length | 3 – 12 m (custom lengths available) | |
| OD Tolerance | As per standard or customer requirement | |
| Wall Thickness Tolerance | Tight tolerance ensured by cold drawing | |
| Applicable Standards | ASTM | A106, A179, A192, A519 |
| EN | EN 10297-1 (E355), EN 10305 | |
| DIN | DIN 2391 | |
| JIS | G4051, G3441 | |
| GB | GB/T 3639 | |
|
Chemical Composition (Carbon Steel, Typical) |
Carbon (C) | 0.06 – 0.25 % |
| Manganese (Mn) | 0.30 – 1.20 % | |
| Silicon (Si) | ≤ 0.40 % | |
| Phosphorus (P) | ≤ 0.035 % | |
| Sulfur (S) | ≤ 0.035 % | |
|
Mechanical Properties (Typical) |
Tensile Strength | 420 – 650 MPa |
| Yield Strength | ≥ 240 MPa | |
| Elongation | ≥ 10 – 25 % | |
| Hardness | As specified by applicable standard | |
| Testing & Certification | Dimensional Inspection | OD, wall thickness, length |
| Mechanical Testing | Tensile, elongation, hardness | |
| Non-Destructive Testing | Eddy current / Ultrasonic testing | |
| Chemical Analysis | Spectrometer analysis | |
| Certification | EN 10204 3.1 / 3.2 (optional) |