Anti-corrosion steel pipe

The manufacturing methods for anti-corrosion steel pipes are generally categorized into the winding type and the round-mold wrapping type. Today, countries around the world place great emphasis on research into corrosion control, and significant progress has been made in the field of pipeline anti-corrosion coatings. With no new materials or technologies emerging, anti-corrosion steel pipes have become a standard method for protecting underground long-distance pipelines. The outer surface is treated using hot‑melt winding technology, forming a three‑layer epoxy anti-corrosion coating: an inner adhesive layer and an outer polyethylene protective layer. The inner surface employs a thermal spray process with epoxy powder; the powder is heated and melted at high temperatures before being uniformly applied to the pipe’s surface, creating a steel–plastic alloy layer.

Category:

Email:

Phone/WeChat:

Keywords:

Share to

Product Description

　　The manufacturing methods for anti-corrosion steel pipes are generally categorized into the winding type and the round-mold packaging type. At present, countries around the world place great emphasis on research into corrosion control, and significant progress has been made in the field of pipeline anti-corrosion coatings. However, no new materials or technologies have yet emerged.
　　Anti-corrosion steel pipe is a corrosion-protection method used for underground long-distance pipelines. The outer surface employs hot-melt winding technology, forming a three-layer epoxy coating at the base—comprising an adhesive layer in the middle and a polyethylene protective layer on the exterior. The inner surface is protected by a hot-spray epoxy powder coating process: the powder is heated and melted at high temperature, then uniformly applied to the pipe’s inner surface to create a steel–plastic alloy layer.

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.