Large Diameter Spiral Steel Pipe

Large Diameter Spiral Steel Pipe

Cangzhou Huishang Pipe Fittings Manufacturing Co., Ltd. supplies large diameter spiral steel pipes for demanding pipeline projects around the world. As an experienced manufacturer in Cangzhou, Hebei Province, we combine more than 30 years of steel pipe production experience with modern automated production lines to deliver spiral welded pipes of consistent quality and precise dimensions.

Production Process

Our large diameter spiral steel pipes are manufactured through a controlled spiral forming and submerged arc welding process. The steel strip is gradually formed into a tube and welded with internal and external double-pass welding, producing a strong continuous spiral seam. After welding, every pipe is straightened, cut to length, and inspected to confirm dimensional accuracy and weld quality.

Key Advantages

Large diameter spiral steel pipes offer several advantages over other pipe types. The spiral welding method allows the production of large diameters using narrower steel strips, reducing material waste and production cost. The continuous spiral weld distributes stress effectively, giving the pipe excellent resistance to internal pressure and external loads. This makes our spiral steel pipes well suited for high-pressure water pipelines and structural applications.

Specifications and Customization

We manufacture spiral steel pipes with outer diameters ranging from 219 mm to 3620 mm and wall thicknesses from 5 mm to 32 mm. Standard materials include Q235B, Q345B and higher strength carbon steel grades. Pipes can be supplied according to GB/T 9711, API 5L and ASTM A252 specifications. Additional services include bevelled ends, hydrostatic testing, 3PE or FBE anti-corrosion coating, and custom pipe lengths to meet project requirements.

Applications

Our large diameter spiral steel pipes are widely used in urban water supply and drainage, long-distance oil and gas transmission, offshore and port piling, bridge foundations, and structural support systems. With exports to more than 50 countries, our products are trusted by international engineering companies, contractors and government projects.

Quality Assurance and Service

Quality is the foundation of our business. Each batch of spiral steel pipe is produced under strict quality management systems certified by ISO 9001, and material test certificates can be provided for every order. Our professional sales team responds quickly with quotations, technical documentation and logistics support. Contact Cangzhou Huishang today to discuss your large diameter steel pipe requirements.