The main characteristics of these products, with respect to traditional steel grades, are elevated yield strength and very good toughness at low temperature, with a chemical composition that guarantees an optimum weldability.

High strength seamless steel tubes used for structural and engineering purposes are produced according to Tenaris Specification PSP 00148. In all cases latest edition of this specification shall be used.

These tubes are used in steel construction for civil and engineering purposes where the relationship between mass and space occupied is specially critical.

Option
Upon request there is the possibility to supply the following steel grades modified with Tungsten (W). This micro-alloying element (W) improves the surface quality of pipes, facilitating steel scale removal.