Looking for reliable automotive precision tubing? Our seamless steel pipes offer exceptional mechanical properties and high surface brightness, ensuring peak performance in shock absorbers, steering columns, and precision auto parts. Beyond the automotive sector, our high-tolerance steel tubes provide stable power transmission for construction equipment and high-security smart lock components.

We provide full-service customization for all dimensions and specifications, including Outer Diameter (OD), Inner Diameter (ID), Wall Thickness (WT), and specialized profiles to meet your exact engineering blueprints.

Product Features

• Dimensional Accuracy: Manufactured via advanced cold-drawing or cold-rolling processes to ensure tight tolerances (up to $\pm0.05\text{mm}$ or better).

• Superior Surface Finish: Smooth, bright surface ($Ra \le 0.4\text{ }\mu\text{m}$) with no oxide layer, significantly reducing or eliminating the need for post-processing.

• Outstanding Mechanical Properties: Optimized for high tensile strength, elongation, and torsional resistance, meeting heavy-duty industrial standards.

• Cleanliness: Thoroughly degreased and anti-rust treated for immediate assembly and precision welding.

Customization & Specifications

We specialize in non-standard manufacturing to meet your specific engineering blueprints:

• Custom Dimensions: Tailored Outer Diameter (OD), Inner Diameter (ID), and Wall Thickness (WT).

• Material Grades: Available in Carbon Steel (10#, 20#, 45#), Alloy Steel (20Cr, 40Cr, 4140), and International Standards (ST35, ST37, ST52, E235, E355).

• Delivery States: BK (Cold Drawn/Hard)

  • BKW (Cold Drawn/Soft)

  • BKS (Stress Relieved)

  • NBK (Normalized)

  • GBK (Annealed)

• Special Profiles: We also provide customized cross-sections, including Lemon, Star, and Hexagonal profiles.