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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 11339460 B1

PDFFull Text
Date of Patent:
May. 24, 2022

Filed:

Sep. 06, 2018

Ferritic stainless steel having excellent high-temperature oxidation resistance, and manufacturing method therefor

Applicant:

Posco, Pohang-si, KR;

Inventors:

Il Chan Jung, Pohang-si, KR;

Jin-Suk Kim, Pohang-si, KR;

Han-Hyuk Go, Pohang-si, KR;

Ji Eon Park, Pohang-si, KR;

Assignee:

POSCO, Pohang-si, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C22C 38/28 (2006.01); C22C 38/20 (2006.01); C22C 38/26 (2006.01); C22C 38/22 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C21D 8/02 (2006.01); C21D 9/00 (2006.01); C21D 9/46 (2006.01); C21D 6/02 (2006.01); C21D 6/00 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/42 (2006.01); C21D 8/00 (2006.01); C22C 38/18 (2006.01); C22C 38/44 (2006.01); C22C 38/50 (2006.01); C22C 38/16 (2006.01); C22C 38/48 (2006.01);
U.S. Cl.
CPC ...
C22C 38/28 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 6/02 (2013.01); C21D 8/005 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0247 (2013.01); C21D 8/0273 (2013.01); C21D 8/0278 (2013.01); C21D 8/0284 (2013.01); C21D 9/0081 (2013.01); C21D 9/46 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/26 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C21D 2211/004 (2013.01); C21D 2211/005 (2013.01); Y10T 428/1259 (2015.01); Y10T 428/1266 (2015.01); Y10T 428/12583 (2015.01); Y10T 428/12597 (2015.01); Y10T 428/12604 (2015.01); Y10T 428/12611 (2015.01); Y10T 428/12618 (2015.01); Y10T 428/12667 (2015.01); Y10T 428/12951 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01);
Abstract

Disclosed are a ferritic stainless steel capable of inhibiting high temperature oxidation through generation of an effective oxide scale, and manufacturing method thereof. The ferritic stainless steel excellent in oxidation resistance at high temperature according to an embodiment of the present disclosure includes, in percent (%) by weight of the entire composition, Cr: 10 to 30%, Si: 0.2 to 1.0%, Mn: 0.1 to 2.0%, W: 0.3 to 2.5%, Ti: 0.001 to 0.15%, Al: 0.001 to 0.1%, the remainder of iron (Fe) and other inevitable impurities, and satisfies a following equation (1).W/(Ti+Al)≥10  (1)

Find Patent Forward Citations

Jung, Il. (2022). Ferritic stainless steel having excellent high-temperature oxidation resistance, and manufacturing method therefor (U.S. Patent No. 11339460). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11339460

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

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