We supply high-quality carbon steel/stainless steel special-shaped pipes, including oval, square, rectangular, D-shaped and various non-standard cross-sections, with wall thickness from 0.6~25MM and customizable lengths (up to 18m). Made from Q235/304/316 materials and compliant with ASTM A500, EN 10219 international standards, our pipes are widely used in building curtain walls, mechanical structures, decorative engineering and other fields. We accept custom orders for complex cross-section pipes based on customer drawings.

Manufactured using advanced cold-forming and welding technology, our production line is equipped with multiple sets of roller dies and laser positioning systems to ensure dimensional tolerances within ±0.3mm for special-shaped cross-sections. The integrated production system includes online straightening equipment and eddy current flaw detectors, enabling us to meet a wide range of custom requirements for special-shaped pipes.

Key Advantages:
✔ 200+ mature die sets for fast response to non-standard demands
✔ Precision forming technology ensures complex cross-section accuracy
✔ Double-sided TIG welding with weld strength ≥ base material

The manufacturing process utilizes a fully automated intelligent control system with digital monitoring from raw material pretreatment through continuous rolling and annealing treatment. Equipped with German-engineered 4-high reversible rolling mills and continuous annealing furnaces, we ensure consistent mechanical properties throughout each coil. Online non-destructive testing equipment provides real-time surface defect and microstructure inspection, while precision slitting units guarantee perfect coiling flatness. Our ISO9001-certified production involves 16 quality checkpoints from molten steel to finished products, ensuring uncompromising quality throughout the entire manufacturing process.

Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.