The difference between straight seam welded pipe and spiral welded pipeThere have always been many customers asking about the difference between straight seam welded pipe and spiral welded pipe, just because of the difference in the shape of the weld, is there a difference in use and various process

Epoxy anticorrosive steel pipe1. Composition: steel pipe + coatingA. Steel pipes: seamless steel pipes, straight seam steel pipes, spiral steel pipes, and other steel pipesB. Epoxy resin paint: a two-component, high-solid paint with epoxy resin as the main agent. It is divided into primer and topcoa

Common methods for 3PE anticorrosive steel pipe anti-corrosion:1. Pipeline anticorrosion generally uses two main methods commonly used: outer coating and cathodic protection.2. Although most of the surface of the pipeline is covered by the coating, an incredible corrosion rate will occur if there is

First of all, it may be due to the stress of the spiral welded steel pipe. That is, the residual stress and welding stress after the steel pipe is formed.Secondly, due to the presence of hydrogen. If the flux is not dried enough, the preheating temperature is insufficient or the p