Tubos

Tubos is the Spanish word for tubes, and in engineering it refers to hollow cylindrical components used as conduits for fluids or gases, as well as structural elements in machinery and vehicles. Tubos may be straight or bent and can act as protective sleeves, heat exchangers, or parts of hydraulic and pneumatic systems.

Materials vary widely: metals such as steel, stainless steel, copper, and aluminum; plastics such as PVC and polyethylene; ceramics and composite materials in specialized applications. Wall thickness, outer diameter, and tolerances are standardized to fit fittings and connectors. Welded tubes are common in larger diameters, while seamless tubes are used when higher pressure integrity is needed.

Manufacturing methods include seamless production by piercing or extrusion; welding of a rolled sheet into a tube (ERW, LSAW, DSAW); and drawing to final dimensions. Finishing steps may add galvanization, heat treatment, polishing, or coating to improve corrosion resistance and surface quality.

Applications span plumbing, heating, ventilation, automotive, aerospace, and medical devices. When selecting a tubo, engineers consider the medium, pressure, temperature, and chemical compatibility, along with mechanical strength and fatigue resistance. Common reference standards include ISO, ASTM, EN, and DIN specifications that define material grades, dimensions, and testing requirements.