A seamless pipe is a cylindrical steel tube with no welding or seam along its length. It is produced by piercing a solid round billet of steel and elongating it into a hollow tube through extrusion or hot rolling. The absence of welded joints eliminates weak points, making seamless pipes exceptionally strong and pressure-resistant.

These pipes are available in a wide range of diameters, wall thicknesses, and steel grades depending on the intended use.