Precision Cold Drawn High Strength Structural Steel Tube – Machinery Grade
Product Overview
Precision cold drawn high strength structural tube is a high-accuracy tubular product designed for machinery and precision structural applications. Manufactured by cold drawing seamless tube with controlled dimensional tolerances and smooth surface finish, it delivers precise fit, consistent mechanical properties and excellent surface quality. This precision grade is optimized for mechanical assembly, automotive frames and hydraulic components where dimensional accuracy is critical.
Why Choose CNB Precision Structural Tube?
Our precision structural tubes are produced on dedicated cold-drawing lines with strict process control over dimensional accuracy, surface quality and mechanical properties. Every tube undergoes full dimensional inspection and surface defect inspection to ensure compliance with precision standards. We offer various heat treatment and finishing options including stress relief, honing and surface coating to match your exact application requirements.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | Precision Cold Drawn High Strength Structural Tube |
| Steel Grade | Q355B / 45# / E355 |
| Manufacturing Process | Cold drawn seamless, stress relieved option |
| Outer Diameter Range | 10mm – 108mm |
| Wall Thickness Range | 1.5mm – 12mm |
| OD Tolerance | H9 (standard) / H8 (high precision) |
| Surface Finish | Bright annealed, oiled |
| Standard Lengths | 3m – 6m, custom cut |
| Applicable Standards | GB/T 3639, EN 10305 |
| Inner Surface Option | Honed / burnished |
Core Advantages
- Ultra-precise dimensions: Tight tolerances for direct mechanical assembly.
- Smooth surface finish: Excellent surface quality for moving and visible components.
- Dimensional stability: Stress-relieved options maintain accuracy during machining.
- High strength options: Available in various strength grades for load-bearing applications.
- Custom finishing: Honing, plating and coating options available.
Applications
This precision cold drawn structural tube is widely used for precision machinery frames, automotive chassis components, hydraulic cylinder barrels, lifting equipment, fitness apparatus and general precision mechanical structural parts.
Get a Quotation
We supply precision structural tubes in various grades, precision levels and surface finishes for machinery and automotive applications. Dimensional inspection reports and sample tubes are available upon request. Contact our precision materials team for a detailed quotation.
