Large-diameter steel pipe is a steel pipe with an outer diameter of more than 1000MM, the steel pipe is made of steel ingot or solid tube billet perforated into capillary tube, and then hot rolled, cold rolled or cold drawn into large-diameter coated steel pipe is coated with plastic on the basis of large-diameter spiral welded pipe and high-frequency welded pipe, the largest pipe diameter of 1200mm.
According to different needs, it can be coated with polyvinyl chloride (PVC), polyethylene (PE), epoxy resin (EPOZY) and other plastic coatings with different properties, good adhesion, strong corrosion resistance, strong acid, alkali and other chemical corrosion resistance, non-toxic, no rust, wear resistance, impact resistance, strong permeability resistance, smooth pipe surface, no adhesion to any substance, It can reduce the resistance during conveying, improve the flow rate and conveying efficiency, and reduce the conveying pressure loss.
