Carbon steel is the most widely used material for piping systems and components in power plants, oil refineries and petrochemical plants, and many other types of industrial and manufacturing facilities. In fact carbon steel actually accounts for nearly 85% of all annual steel production worldwide. It’s used so widely because of its ready availability and relatively low cost. In certain applications however, corrosive chemicals and other environmental factors can lead to severe deterioration and degradation of carbon steel. The good news? Corrosion can be fought by keeping up with prudent monitoring, carbon steel pipe inspections, and repair practices.

ERW pipe is made by rolling low carbon structural steel or low alloy structural steel strip into tube blank according to certain helix angle, and then welding the tube seam. It can produce large diameter steel pipe with narrow steel strip. The specification is indicated by outer diameter * wall thickness, and the API 5L X52 Welded Steel ERW Pipe shall ensure that the hydrostatic test, tensile strength and cold bending performance of the weld meet the requirements.

45# refers to the carbon content of this material, about 450. This kind of material in seamless steel pipe, compared with other excellent carbon steel, is also common.