Dalmine S.p.a.

Stafano Fare

Ettore Anelli

Héctor Manuel Quintanilla Carmona

Emanuele Paravicini Bagliani

José Enrique Garcia Gonzalez

Victor Blancas Garcia

Disclosed herein are embodiments of a seamless quenched and tempered steel pipe which can have a wall thickness WT higher than or equal to 6 mm and lower than or equal to 35 mm. Some embodiments of the steel pipe can have a chemical composition comprising C, Mn, Si, Cr, Ni, Mo, Al, N, Ca, Nb, Ti, V, Zr, and Ta based on the composition weight, the remaining being iron and impurities. In some embodiments, wherein (V+Nb) content is lower than 0.07 wt %; defining a first parameter P1=(60&#xd7;C)+Cr+[5&#xd7;e]+50&#xd7;(V+Nb), the chemical composition satisfies a first condition P1&#x2266;14.5.

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Dalmine, Italy

Stafano Fare