What is a Seamless pipe?
A circular steel billet is used to make a seamless pipe (solid cylindrical hunk of steel that is cast from raw steel). After that, the billet is heated, stretched, and pushed or dragged over a form. The internal diameter is increased while the outside diameter is reduced when it is punctured through the center with a die and mandrel. Even though seamless pipes come in many diameters, the cost of production rises as the diameter of the pipe grows. The term “seamless” refers to the lack of a seam. Process piping, power piping, shipbuilding, pressure vessel, construction, and chemical industries all employ seamless pipes.
Applications of 321h Seamless Pipes
Seamless pipes can be made in a variety of ways, depending on the diameter required, as well as the diameter to wall thickness ratio. In general, the production of seamless pipe begins with the transformation of raw steel into a more practical form — a hot solid billet. After that, the material is stretched out and pushed or pulled over a form. The hollow pipe is then driven between a die and mandrel during the extrusion process. This increases the internal diameter while decreasing the exterior diameter.
Water, natural gas, trash, and air are all transported via seamless steel pipe regularly. Many high-pressure, high-corrosive settings, such as those found in the oil and gas, power generating, and pharmaceutical sectors, require it regularly. SS Seamless pipes for oil casing and tubing in the production, exploration, and processing sectors for offshore and onshore oil and gas applications.
Advantages of 321H Seamless Pipes
Seamless pipes have the obvious advantage of having no seam, which eliminates the possibility of a weak seam. This means that seamless pipes of the same material grade and size can typically bear 20% more working pressure than the welded pipe of the same material grade and size.
The seamless pipe has stronger resistance to corrosion due to the lack of a seam, as some fewer contaminants and faults might occur along a weld.
Less Testing: Seamless pipes don’t need to be tested for weld integrity – after all, if there isn’t a weld, there isn’t a test.
Source- Seamless Pipe Manufacturers
