one, Corrosion-resistant. Polyethylene is an inert materials, site except for a handful of robust oxidant, can stand up to a assortment of chemical media erosion.n2, Without leak. Polyethylene welded steel pipe mainly welded link (scorching soften link or fused link), be certain that the interface product, composition and administration body's own identity in essence, to achieve the integration of joint and pipe.nnTest verified that the tensile strength and burst toughness of the interface was increased than the pipe human body, can correctly resist the tensile stress in the pressure generated hoop stress and axial course.n3, Superior toughness. Polyethylene coating metal pipe is a superior toughness of the pipe, which is generally more than elongation at break of 500%, based on the pipe's means to adapt to uneven settlement is pretty solid. It is an great seismic overall performance of the pipeline.nn4, With outstanding versatility. Polyethylene adaptable polyethylene tube can be coiled, and a longer length of the offer does not will need all kinds of connecting pipe opponent, and it is quick to system in accordance with the demands of the building variations, but also modifications in the pre-development pipe form, aged tube inserted to restore the original dimensions and proportions.nn5, With a fantastic capacity to resist scratches. Research have shown, PE80 grade polyethylene pipe has greater resistance to SCG capacity and scratch-resistant capacity. PE100 polyethylene pipe supplies are obtaining a better capability to resist scratches.nn6, Fantastic resistance to immediate crack pass. Polyethylene has fantastic means to transfer resistance to swift crack. For the reduced the temperature, the greater the diameter and wall thickness, the larger doing the job force, speedy crack the plastic pipe the greater the danger qualities.nnThe polyethylene pipe, particularly PE100 pipe much more acceptable for huge diameter mild steel pipe. At this time, the standard polyethylene gasoline pipe foreign (IS04437-1997 and EN1555) has resistance to rapid crack growth (RCP) getting provided in the regular.nn7, Very long assistance life. <=60  under the conditions can be used for more than 50 years.