The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2017
Filed:
Apr. 08, 2014
Dalmine S.p.a., Dalmine, IT;
Ettore Anelli, Dalmine, IT;
Emanuele Paravicini Bagliani, Dalmine, IT;
Stafano Fare, Dalmine, IT;
José Enrique Garcia Gonzalez, Veracruz, MX;
Victor Blancas Garcia, Veracruz, MX;
Héctor Manuel Quintanilla Carmona, Veracruz, MX;
DALMINE S.P.A., Dalmine, IT;
Abstract
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×C)+Cr+[5×e]+50×(V+Nb), the chemical composition satisfies a first condition P1≦14.5.