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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.:

US 9644248 B1

PDFFull Text
Date of Patent:
May. 09, 2017

Filed:

Apr. 08, 2014

Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes

Applicant:

Dalmine S.p.a., Dalmine, IT;

Inventors:

Ettore Anelli, Dalmine, IT;

Emanuele Paravicini Bagliani, Dalmine, IT;

Stefano Fare, Dalmine, IT;

Assignee:

DALMINE S.P.A., Dalmine, IT;

Attorney:

Knobbe Martens Olson and Bear LLP

Primary Examiner:

Helene Klemanski

Int. Cl.
CPC ...
C21D 8/10 (2006.01); C21D 9/08 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); F16L 9/02 (2006.01); C22C 38/00 (2006.01);
U.S. Cl.
CPC ...
C21D 8/105 (2013.01); C21D 9/08 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); F16L 9/02 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01);
Abstract

Disclosed herein are embodiments of a seamless quenched and tempered steel pipe having a wall thickness (WT) higher than or equal to 35 mm and lower than or equal to 80 mm. Embodiments of the steel pipe can comprise C, Mn, Cr, Ni, Mo, Al, Ca, N, Nb, Ti, Zr, and Ta. Further, for some embodiments of the steel pipe wherein, defining a first parameter P=50×C+Cr+10×Mo+70×V, the chemical composition can satisfy a first condition P≦8.0.

Find Patent Forward Citations

Anelli, Ettore. (2017). Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes (U.S. Patent No. 9644248). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9644248

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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