Steel pipe

Steel pipes are long, hollow tubes that are used for a variety of purposes. They are produced by two distinct methods which result in either a welded or seamless pipe. In both methods, raw steel is first cast into a more workable starting form. It is then made into a pipe by stretching the steel … Continue reading Steel pipe

Advertisements

Difference between ERW, DOM and Seamless Tube

This month we take a hard look at the differences between ERW, DOM and Seamless Tube. ERW (Electric Resistance Welded) The nomenclature ERW refers to a specific type of welding process that involves both spot and seam welding. Seam welding is commonly used during the manufacturing of round, square and rectangular steel tubing. The steel … Continue reading Difference between ERW, DOM and Seamless Tube

Mechanical Lined Pipe Manufacturing Procedure Specification

This manufacturing procedure specification is prepared mainly with reference of API Spec 5LD (3rd edition) Specification for CRA Clad or Lined Steel Pipe, SY/T6623-2005 Specification for CRA Clad or Lined Steel Pipe, SY/T6855-2012 Bi-metal Line Steel Pipe for Natural Gas Line with H2S/CO2 ,relevant technical specifications and related standards home and abroad.