one, Corrosion-resistant. Polyethylene is an inert material, other than for a couple powerful oxidant, can endure a variety of chemical media erosion.n2, Without the need of leak. Polyethylene welded metal pipe mainly welded relationship (incredibly hot melt link or fused relationship), ensure that the interface substance, structure and administration body's individual id in essence, to realize the integration of joint and pipe.nTest verified that the tensile toughness and burst strength of the interface was better than the pipe body, can successfully resist the tensile strain in the stress produced hoop tension and axial course.nn3, Substantial toughness. Polyethylene coating metal pipe is a high toughness of the pipe, which is generally additional than elongation at break of five hundred%, based mostly on the pipe's potential to adapt to uneven settlement is quite solid. It is an outstanding seismic efficiency of the pipeline.nn4, With outstanding overall flexibility. Polyethylene versatile polyethylene tube can be coiled, and a lengthier length of the offer does not will need all types of connecting pipe opponent, and it is easy to course of action in accordance with the needs of the development changes, but also changes in the pre-development pipe shape, aged tube inserted to restore the initial sizing and proportions.nn5, With a good potential to resist scratches. Scientific tests have demonstrated, site PE80 grade polyethylene pipe has much better resistance to SCG potential and scratch-resistant capacity. PE100 polyethylene pipe products are acquiring a superior means to resist scratches.n6, Great resistance to immediate crack pass. Polyethylene has fantastic means to transfer resistance to fast crack. For the reduced the temperature, the greater the diameter and wall thickness, the higher functioning force, rapid crack the plastic pipe the better the hazard attributes.nnThe polyethylene pipe, primarily PE100 pipe far more ideal for major diameter mild steel pipe. At present, the common polyethylene gasoline pipe overseas (IS04437-1997 and EN1555) has resistance to rapid crack advancement (RCP) remaining provided in the normal.n7, Long company life. <=60  under the conditions can be used for more than 50 years.