Seamless tubes are as defined – they do not have a welded seam. The tubing is manufactured through an extrusion process where the tube is drawn from a solid stainless steel billet and extruded into a hollow form. Tubing is further shaped through pilgering, a cold rolling process, or cold drawing.

Seamless steel pipe (SMLS) is formed by drawing a solid billet over a piercing rod to create the hollow shell, without welding or seam. Seamless steel pipe can be cut, threaded or grooved.

It is more expensive than welded pipe, but offers greater strength. Seamless steel pipe’s ASME-rated working pressure is typically 20% higher than that of welded steel pipe piles. It also offers higher resistance to corrosion or damage because of lower risk of impurities along seams.

Seamless steel tubes are formed at one time during rolling. Welded steel pipes need to be welded after rolling, generally with spiral welding and straight welding. The performance seamless tube is better, and of course the price is higher.

Stainless steel pipe is primarily used in piping systems for the transport of fluids or gases. We manufacture steel pipe from a steel alloy containing nickel as well as chromium, which give stainless steel its corrosion-resistant properties.

Seamless steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. … Seamless steel pipes are widely used