Plastic-coated composite steel pipe is a type of pipe material that is composed of a steel pipe coated with a plastic film. It combines the strength of the steel pipe and the corrosion resistance of the plastic film, making it widely used in various fields. During the manufacturing process of the plastic-coated composite steel pipe, a layer of primer is first applied to the surface of the steel pipe, followed by a layer of plastic film, and finally they are firmly bonded together through thermal fusion.

Plastic-coated composite steel pipe has the following advantages:

1. Plastic-coated composite steel pipe uses high-quality materials such as epoxy resin, which is rust-resistant, anti-static, and has good flame-retardant properties.

2. It low fluid resistance, high cost performance, and the coated plastic surface does not rust or scale. The resistance and friction coefficient are lower than ordinary steel pipes.

3. The coated plastic composite steel pipe has multiple connection methods, making it convenient and reliable. There are various connection methods such as welding, flange connection, threaded connection, and groove connection, which are convenient on-site construction.

4. It has strong mechanical strength and adopts reinforced welded steel pipes or high-pressure seamless steel pipes, which meet strict underground usage conditions and have better safety.

5. It is corrosion-resistant, oxidation-resistant, and has a long service life. Plastic-coated composite steel pipe has a tight coating that prevents metal oxidation. It has the characteristics of, alkali, and salt resistance, making it especially suitable transporting fluids containing corrosive chemicals.