Spiral steel pipe

Spiral-welded steel pipes are suitable for corrosion protection of various steel structures, sluice gates, gas storage tanks, docks, ships, and equipment in refineries and chemical plants, as well as for waterproofing and leak prevention in concrete structures such as sewage ponds, concrete pipes, rooftop waterproofing layers, basements, and bathrooms. They are also widely used for external corrosion protection of underground or submerged steel pipelines transporting gas, oil, heat, and water.

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Spiral steel pipe

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Product Description

　　Spiral-welded steel pipes are suitable for corrosion protection of various steel structures, sluice gates, gas storage tanks, docks, ships, and equipment in refineries and chemical plants, as well as for waterproofing and leak prevention in concrete structures such as sewage ponds, concrete pipes, rooftop waterproofing layers, basements, and bathrooms. They are also widely used for external corrosion protection of underground or submerged steel pipelines transporting gas, oil, heat, and water.
　　1. During the installation of spiral steel pipes, carefully inspect whether rainwater or groundwater has come into contact with the pipe. If water has contacted the pipe, dry the outer coating thoroughly before proceeding with further treatment.
　　2. During the installation of spiral steel pipes, impacts must be avoided, handling should be gentle, and dropping must be prevented.
　　3. To prevent the insulation layer from being scorched and falling off, the insulation of insulated spiral steel pipe lines must not come into contact with open flames.
　　4. Spiral steel pipes and pipe fittings shall be neatly stacked and stored on a relatively level surface, with a stacking height not exceeding 1.5 meters.

Our Advantages

Smart Manufacturing Capacity Advantage

13 automated pipe‑making lines and 4 anti‑corrosion production lines, with an annual output of one million tons of steel pipes; all large‑diameter sizes are produced in‑house, ensuring stable lead times for bulk deliveries.

Quality and Qualification Advantages

Comprehensive nondestructive testing conducted by an independent laboratory, with dual certification under API and national standards; a long-term approved supplier for central state-owned enterprises, and fully qualified to bid on engineering projects.

Comprehensive Service Advantages

Customized solutions covering the entire oil & gas, municipal, and water‑conservation sectors, offering end‑to‑end support from conceptual design through logistics and after‑sales service, with capabilities for both domestic and international trade exports.