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
The US designations for steels are those of the American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE).
Seamless Pipe. Tubular product made without a welded seam, manufactured in a hot-forming process using an extrusion or drawing process that can be followed by cold sizing or cold finishing to produce the desired shape, dimensions and properties.
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
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.
ASTM A333 covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures.
Boiler tubes need to withstand high pressure and temperature.
Cold Drawn Seamless Mechanical Tubing (CDS) is a cold drawn 1018 / 1026 steel tube which offers uniform tolerances, enhanced machinability and increased strength and tolerances compared to hot-rolled products.
ASTM A335 P92 Alloy Seamless Steel Pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.