2PP anticorrosive steel pipe is suitable for underground water supply and drainage, welding flange downhole, positive negative pressure ventilation, pumping gas, fire sprinkler and so on. Thermal power plant technology water waste residue, water return pipe. The water supply pipeline of spray and sprinkler system has the applicability. Power, communication, highway and other cable protection sleeve. It is suitable for the construction of water supply, heat network heating, water project, gas transportation and underground water transmission. Oil transport pipeline, chemical pharmaceutical, printing and dyeing and other work to transport corrosive media technology pipelines. Sewage treatment discharge pipe, sewage pipe and biological pool anti-corrosion engineering. Agricultural irrigation pipe, deep well pipe, drainage pipe network and so on use, say 3 PE anticorrosive steel pipe is necessary at the time of the invention, the trust by the extension of science and technology, it is still more light effects in the future.

Most of the large pipeline anti-corrosion in China is 3PE coating, and 3PP and 3PE coating belong to the multi-layer coating system, which consists of the bottom epoxy powder, the intermediate layer binder and the outer PP jacket. The performance of PP is similar to that of PE, and 3PP coating is fully capable of producing 3PP coating with 3PE production line, and no special 3PP coating operation line is required. However, the difference in performance of PP and PE materials, and the performance of 3PP and 3PE coating, can be applied to different environments. The advantages of 3PP coating on certain properties make it possible to play a role in areas where 3PE coatings are not available, so there are many pipeline projects abroad that use 3PP anti-corrosion coatings.

At present, it is mainly foreign products that are related to the environment, for some countries with high environmental temperature, and PP is harder than PE, so as to avoid scratch coating.