Product Series
Contact Us
Phone:0317-6090900
Yanshan County Southern Industrial Development Zone, Hebei Province
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.
View product details
查看详情
The base materials for anti-corrosion steel pipes include spiral-welded steel pipes, seamless steel pipes, and straight-seam steel pipes. These pipes are coated with a three-layer polyethylene anti-corrosion system, offering excellent corrosion resistance. Thanks to their superior water- and gas‑impermeability as well as robust mechanical properties, they are widely employed in the petroleum pipeline industry. The pipe surfaces undergo various pre‑treatment processes, and all pipes are subjected to internal pressure during manufacturing. Applications of anti-corrosion steel pipes: Their base materials comprise spiral‑welded, straight‑seam, and seamless pipes, making them extensively used in the petroleum, chemical, and natural gas sectors. They also find extensive application in thermal power generation, wastewater treatment, water supply systems, bridge construction, steel structures, and offshore pile‑driving projects. Additionally, they are suitable for high‑rise building water supply, district heating networks, and self‑supporting systems.
View product details
查看详情
3PE‑coated steel pipe refers to an externally coated steel pipe with a three‑layer polyethylene protective system, a commonly used corrosion‑resistant pipeline in the petroleum industry. The outer layer of 3PE‑coated steel pipe is a high‑density polyethylene anti‑corrosion coating; the intermediate layer consists of a copolymer adhesive containing functional groups with branching structures; and the innermost layer is an epoxy powder coating that directly contacts the steel pipe surface. 3PE‑reinforced grade corrosion‑resistant steel pipes are widely applied and produced in large quantities, primarily serving as pipelines for fluid transport or as structural components. Standard‑grade 3PE‑coated steel pipes are typically manufactured from alloy structural steels, ordinary carbon structural steels, or low‑alloy structural steels.
View product details
查看详情