Cold Rolled Bright Steel Tube

Cold Rolled Bright Steel Tube is precision cold rolled for accurate dimensions and smooth surfaces, providing reliable performance for hydraulic systems, machinery, and automotive components requiring tight tolerances.

Maintains dimensional precision up to H8 and H9 tolerances, significantly minimizing secondary machining time and raw material waste for our clients.

Bright annealed finish with controlled surface roughness supports applications requiring clean external and internal conditions.

Supplied in bright, oiled, or phosphated surface conditions depending on corrosion resistance requirements and downstream processing needs.

Non-Standard Dimensions: Support for custom OD, ID, and wall thickness requirements beyond standard H8/H9 tolerances.

Tube End Processing: Services include precision cut-to-length, deburring, beveling/chamfering, and protective end-capping.

Tailored Surface Finishes: Options range from heavy-duty anti-rust oils to specialized phosphating layers for improved lubricant retention.

Hydraulic & Pneumatic Cylinders (E355, STKM11A): High yield strength and smooth interior finish optimized for fluid power systems.

Automotive Shock Absorbers & Transmission Parts (20#, 45#): Excellent formability and uniform mechanical properties.

General Mechanical & Precision Machinery (Q195, Q235): Cost-effective structural integrity and reliable dimensional stability.

Bright Annealing: Heat-treated in a protective atmosphere furnace to prevent oxidation and decarburization, ensuring clean, scale-free surfaces.

Precision Cold Rolling: Multi-roll cold reduction refines the microstructure, increasing tensile strength while maintaining optimal ductility and accurate dimensions.

Stress Relief & Straightening: Advanced straightening eliminates internal stresses from cold working, ensuring superior straightness and preventing distortion during machining.

Certified Quality Systems: Facilities operate under strict ISO 9001 and IATF 16949 quality management standards.

International Standards: Materials fully comply with global metallurgical benchmarks, including ASTM, EN, DIN, JIS, and GB.

Environmental Safety: Manufacturing processes align with international environmental guidelines, including RoHS and REACH compliance.

Production Infrastructure: Operated by certified rolling mills, bright annealing lines, and precision straighteners ensuring stable batch-to-batch consistency.

Rigorous Testing: Every production batch undergoes strict Eddy Current Testing, chemical spectrum analysis, and mechanical tensile testing.

Standard Compliance: Fully compliant with international metallurgical standards, backed by mill test certificates (MTC) supplied with every shipment.

Protection: Tubes are coated with anti-rust oil, fitted with protective plastic end caps, and wrapped securely.

Bundling & Loading: Tightly strapped with steel bands into sturdy bundles or packed in seaworthy wooden crates, fully optimized for long-distance container shipping to prevent transit rust or structural distortion.