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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 9410232 B1

PDFFull Text
Date of Patent:
Aug. 09, 2016

Filed:

Oct. 31, 2012

Method for producing steel component

Applicants:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Masayuki Horimoto, Tokyo, JP;

Hideki Imataka, Tokyo, JP;

Masaomi Nakaoka, Tokyo, JP;

Akihito Ninomiya, Saitama, JP;

Yoshinari Okada, Saitama, JP;

Assignees:

NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Clark & Brody

Primary Examiner:

Jessee Roe

Int. Cl.
CPC ...
C23C 8/22 (2006.01); C23C 8/32 (2006.01); C23C 8/80 (2006.01); C21D 9/28 (2006.01); C21D 9/32 (2006.01); C21D 1/06 (2006.01); C21D 1/58 (2006.01); C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/26 (2006.01); C21D 9/30 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); F16H 55/34 (2006.01); F16H 55/06 (2006.01);
U.S. Cl.
CPC ...
C23C 8/80 (2013.01); C21D 1/06 (2013.01); C21D 1/58 (2013.01); C21D 9/28 (2013.01); C21D 9/30 (2013.01); C21D 9/32 (2013.01); C22C 38/00 (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 38/22 (2013.01); C22C 38/26 (2013.01); C23C 8/22 (2013.01); C23C 8/32 (2013.01); F16H 55/34 (2013.01); F16H 55/06 (2013.01);
Abstract

A method for producing a steel component by performing the treatments of the following sequentially steps 1 and 2 to a steel material containing, by mass %, C: 0.15 to 0.25%, Si: 0.01 to 0.10%, Mn: 0.50 to 0.80%, S: 0.003 to 0.030%, Cr: 0.80 to 1.20%, Mo: 0.30 to 0.45%, Al: 0.015 to 0.050%, and N: 0.010 to 0.025%, wherein Cr/Mn is 1.3 to 2.4, the balance being Fe and impurities, and contents of P and O among the impurities are P: not more than 0.010%, and O: not more than 0.0020%:

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