FERRITIC STAINLESS STEEL HAVING EXCELLENT HIGH-TEMPERATURE OXIDATION RESISTANCE, AND MANUFACTURING METHOD THEREFOR

Title:

FERRITIC STAINLESS STEEL HAVING EXCELLENT HIGH-TEMPERATURE OXIDATION RESISTANCE, AND MANUFACTURING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2019/117430

Kind Code:

A1

Abstract:

Disclosed are: a ferritic stainless steel capable of inhibiting high-temperature oxidation through effective oxide scale generation; and a manufacturing method therefor. A ferritic stainless steel having excellent high-temperature oxidation resistance, according to one embodiment of the present invention, comprises, by wt%, 10-30% of Cr, 0.2-1.0% of Si, 0.1-2.0% of Mn, 0.3-2.5% of W, 0.001-0.15% of Ti, 0.001-0.1% of Al, and the balance of Fe and inevitable impurities, and meets the following formula (1). (1) W/(Ti+Al) ≥ 10

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Inventors:

JUNG IL CHAN (KR)
KIM JIN-SUK (KR)
GO HAN-HYUK (KR)
PARK JI EON (KR)

Application Number:

PCT/KR2018/010399

Publication Date:

June 20, 2019

Filing Date:

September 06, 2018

Export Citation:

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Assignee:

POSCO (KR)

International Classes:

C22C38/22; C22C38/02; C22C38/04; C22C38/20; C22C38/26; C22C38/28

Foreign References:

KR20050007572A	2005-01-19
JP2012177157A	2012-09-13
KR20160076792A	2016-07-01
KR20130107371A	2013-10-01
JP2007254794A	2007-10-04

Other References: