Polyethylene-coated anti-corrosion steel pipe

Three-layer polyethylene‑coated corrosion‑resistant steel pipe is a composite anti-corrosion pipeline that uses ordinary carbon steel pipe as its base. After standardized surface treatment, the outer wall of the pipe is coated with one or more layers of polyethylene protective coating; the industry’s mainstream products employ a mature three‑layer composite structure. These layers work in concert to form a complete anti-corrosion barrier, effectively isolating the pipe from soil, groundwater, and corrosive acidic substances, thereby significantly extending the service life of the pipeline and reducing maintenance and replacement costs. The complete product system comprises four core components, each with an independent structure and clearly defined functions, as detailed below: