TPEP anti‑corrosion steel pipe for natural‑gas transmission adopts spiral‑welded, straight‑seam or seamless steel pipe as the base material. It is treated with outer three‑layer polyethylene (3PE) anti‑corrosion coating and inner fusion‑bonded epoxy powder coating, achieving double‑sided anti‑corrosion protection.

The outer 3PE coating forms a dense protective barrier, isolating the steel pipe from underground humid soil, groundwater and corrosive substances. It features outstanding impact‑resistance, abrasion‑resistance and anti‑aging capacity, effectively preventing external corrosion when the pipeline is buried underground for a long time.

The inner epoxy powder coating is chemically inert against natural‑gas medium, which can resist gas‑borne corrosion, reduce gas flow resistance and avoid impurity deposition inside the pipe. No secondary pollution will occur during gas transportation, ensuring safe and stable gas delivery.

We can provide standard‑grade and reinforced‑grade anti‑corrosion layers according to different geological and soil corrosion environments. All products are manufactured in strict accordance with GB/T 23257‑2017 and GB/T 28708‑2012 standards. Every pipe passes coating thickness inspection, spark holiday detection and adhesion test before delivery, with complete inspection documents available.

This pipe is widely used for buried urban natural‑gas distribution pipelines, long‑distance natural‑gas trunk pipelines, gas‑transmission branch lines and other gas‑supply engineering projects.