Cold Drawn Seamless Pipe
Review
Description
Premium Cold Drawn Seamless Pipe – Ultra-Precise, High-Strength, for Demanding Industrial Applications
Key Features：
🔹 High Dimensional Accuracy ±0.05mm
🔹 Smooth Surface – No Scaling, Ready to Use
🔹 Enhanced Strength & Hardness
🔹 Materials: 20#, 45#, A106 Gr.B, ST35, ST45.8
🔹 Standards: ASTM A106, GB/T3639, DIN 2391
🔹 Applications: Hydraulic Cylinders, Machinery, Auto Parts
🔹 Custom Cutting, Beveling, Packaging
| CommonSize | OD | 16-457mm |
| Wall Thickness | 2-100mm，Up to 200mm | |
| Length | 6m-12m or as request | |
| Steel material | Q195, Q215, Q235, Fe310, Fe360, St33, St37-2, SS330, SS400, S235, S275, S355, ASTM 1010, ASTM 1017, ASTM 1020 | |
Standard | API,ASTM, ASME, DIN,GB,JIS,ASNI,BS | |
Usage | Transport routes for gas, oil, chemical materials, water,steam and other gas or liquid | |
Ends | Plained or Beveled or other requirements | |
Surface
| Bared, Black Painted, Galvanized, Oiled or to your requirements | |
Package | 1.In bundle with steel strips2.Woven bag packing3.To your requirement | |
Packing | Bundle, or with all kinds of colors PVC or as your requirements | |
Product Description
Our Cold Drawn Seamless Pipe is precision-engineered for applications requiring tight tolerances, superior surface finish, and high mechanical strength. Through a cold drawing process, the pipe achieves exceptional dimensional accuracy, smooth surface (Ra ≤ 1.6μm), and improved tensile strength—up to 20% higher than hot-rolled equivalents. Ideal for hydraulic cylinders, precision shafts, automotive components, and high-pressure machinery, these seamless tubes eliminate weld failure risks and ensure long-term reliability. Made from high-quality carbon steel (20#, 45#, A106 Gr.B), and compliant with ASTM A106, GB/T3639, DIN 2391, our pipes are available in OD 10–200mm, WT 1–20mm. Optional services include cut-to-length, beveled ends, anti-rust oil, and custom packaging. Trusted by global manufacturers for consistent quality and on-time delivery.
Why Choose Us?
✅ Precision Guaranteed – CNC-controlled drawing for consistent dimensions
✅ No Surface Defects – Bright finish, no scale, ready for plating or painting
✅ High Strength-to-Weight Ratio – Stronger than welded tubes, lighter than solid bars
✅ Global Compliance – Certifications: ISO 9001, API Monogram (on request), Mill Test Report
✅ Custom Fabrication – Cut, bevel, drill, or package per your technical drawings
✅ Fast Delivery – 15–25 days for bulk orders, stable production capacity
Applications
⚙️ Hydraulic Systems – Cylinder tubes, piston rods
🏭 Industrial Machinery – Spindles, bearings, transmission shafts
🚗 Automotive – Steering columns, suspension components
🧪 Instrumentation – Precision tubes for sensors & gauges
🔧 Engineering Equipment – High-load connectors & supports
Hot-Rolled Seamless Steel Pipe:
Pipe Blank Preparation and Inspection
Pipe Blank Heating
Perforation
Pipe Rolling
Reheating of Steel Pipe
Sizing or Reducing
Heat Treatment
Straightening of Finished Pipes
Finishing
Inspection - including non-destructive, physical and chemical, and dimensional inspection
Storage
Cold-Rolled (Drawn) Seamless Steel Pipe:
Billet Preparation
Acid Pickling and Lubrication
Cold Rolling or Drawing
Heat Treatment
Straightening
Finishing
Inspection - including non-destructive, physical and chemical, and dimensional inspection
For both types, the final steps involve inspection to ensure the quality of the seamless steel pipes before they are stored.
