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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 11891681 B1

PDFFull Text
Date of Patent:
Feb. 06, 2024

Filed:

Feb. 17, 2022

Ferritic stainless steel sheet, method for producing the same, and part

Applicant:

Nippon Steel Stainless Steel Corporation, Tokyo, JP;

Inventors:

Junichi Hamada, Tokyo, JP;

Atsutaka Hayashi, Tokyo, JP;

Assignee:

NIPPON STEEL STAINLESS STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Anthony M Liang

Int. Cl.
CPC ...
C22C 38/54 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/52 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); B23K 35/02 (2006.01); B23K 35/30 (2006.01); B23K 103/04 (2006.01);
U.S. Cl.
CPC ...
C22C 38/54 (2013.01); B23K 35/0233 (2013.01); B23K 35/3086 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 9/46 (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 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/52 (2013.01); B23K 2103/05 (2018.08);
Abstract

The present invention has as its technical problem to prevent cracking when producing a steel sheet by ferritic stainless steel sheet and provide a ferritic stainless steel sheet excellent in toughness and a part using the same. To solve this technical problem, the present invention provides steel comprised of, by mass %, C: 0.001 to 0.030%, Si: 0.01 to 1.00%, Mn: 0.01 to 1.00%, P: 0.010 to 0.050%, S: 0.0002 to 0.0100%, Cr: 10.0 to 20.0%, N: 0.001 to 0.030%, Nb: 0.10 to 0.40%, B: 0.0002 to 0.0030%, Al: 0.005 to 0.100%, and a balance of Fe and unavoidable impurities in which the amount of solute Nb being less than or equal to a smaller value of 0.20 and (Nb content-0.08) mass %.

Find Patent Forward Citations

Quick Actions:

Hamada, Junichi. (2024). Ferritic stainless steel sheet, method for producing the same, and part (U.S. Patent No. 11891681). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11891681

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

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