The difference between plastic-coated steel pipes and internal and external epoxy-coated steel pipes

Epoxy resin steel pipe is a steel-plastic composite product that uses a steel pipe as the base pipe, plastic powder as the coating material, and a plastic layer or other anti-corrosion layer on the inner and outer surfaces of the steel pipe. Plastic-coated steel pipes are divided into polyethylene-coated steel pipes and epoxy resin-coated steel pipes according to the different inner coating materials. Product marking consists of plastic-coated steel pipe code, inner coating material code, and nominal size.

Plastic-coated steel pipes are also called plastic-coated pipes, steel-plastic pipes, and plastic-coated steel pipes. They mainly use steel pipes as the base, and a layer of plastic anti-corrosion is fused to the inner surface of the steel pipe (bottom pipe) through spraying, rolling, dipping, and suction processes. layer or a steel pipe with a plastic anti-corrosion layer fused to the inner and outer surfaces. Plastic-coated steel pipes have very strong corrosion resistance and relatively small friction resistance. Epoxy resin-coated steel pipes, also known as PE steel pipes, are mainly suitable for the transportation of water supply and drainage, seawater, warm water, oil, gas, and other media.