SS304 Seamless Tubes
SS 304 Seamless tubes don’t have a welded seam, as the name implies. Extrusion is used to create the tubing, which entails pulling the tube from a solid stainless steel billet and extruding it into a hollow form. Pilger, a cold rolling procedure, or cold drawing are used to shape tubing further.
SS304 ERW Tubes
Cold forming a flat steel strip into a rounded tube and putting it through a series of forming rollers to generate a longitudinal seam result in SS 304 Electric Resistance Welded (ERW) Tubes. The two edges are heated and pressed together to establish a connection using a high-frequency current.
What is the difference between SS304 Seamless Tubes and SS304 ERW Tubes?
Wrapping the metal and then welding it longitudinally throughout its full length produces SS304 Electric Resistance Welding (ERW) tube. The SS 304 Seamless Tube is made by extruding the metal to the appropriate length; the ERW tube has a weld joint in its cross-section, whereas the seamless pipe does not.
SS 304 ERW tube is longitudinally welded and can be manufactured up to 24 OD from tape or coils. Cold-formed SS 304 ERW tube from a steel strip that is dragged through a series of rollers and molded into a tube that is melted by an electric charge.
SS 304 Seamless Tubes are available in diameters ranging from 1/8 inch to 26 inches outer diameter and are completed to dimensional and wall thickness specifications. High-pressure uses include hydrocarbon, oil, and gas refineries, exploration and drilling, oil and gas transportation, and air and hydraulic cylinders, bearings, boilers, and automobiles.
SS304 ERW TUBE is available in a number of sizes, from 2 3/8 inch outer diameter to 24 inches outside diameter, and in lengths up to 100 feet. Surface finishes come in a variety of forms, and processing can be done on-site to meet customer requirements.
