Title:
FERRITIC STAINLESS STEEL WITH IMPROVED STRENGTH, WORKABILITY, AND CORROSION RESISTANCE
Document Type and Number:
WIPO Patent Application WO/2022/108058
Kind Code:
A1
Abstract:
Disclosed in the present specification is a ferritic stainless steel with improved strength, workability, and corrosion resistance, which can be applied to various industrial fields, such as washing machines, refrigerators, and all kinds of electric home appliances. An embodiment of the disclosed ferritic stainless steel comprises, by weight%, C: 0.0005 to 0.02%, N: 0.005 to 0.02%, Si: 0.7 to 1.0%, Cr: 16.0 to 17.0%, Ti: 0.05 to 0.3%, and the balance being Fe and inevitable impurities, wherein the ferritic steel sheet may have a value of formula (1) below satisfying 21 to 25, a tensile strength of 470 MPa or more, and an elongation of 27% or more. (1) 7*Si + Cr, wherein Si and Cr represent the contents (weight%) of the respective elements.
Inventors:
PARK JIEON (KR)
PAEK JONG-SU (KR)
PAEK JONG-SU (KR)
Application Number:
PCT/KR2021/011466
Publication Date:
May 27, 2022
Filing Date:
August 26, 2021
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/28; C22C38/02
Foreign References:
| KR102020511B1 | 2019-09-10 | |||
| CN104250708A | 2014-12-31 | |||
| JP2002275595A | 2002-09-25 | |||
| KR20170074260A | 2017-06-30 | |||
| KR100963109B1 | 2010-06-14 | |||
| JPH08176750A | 1996-07-09 | |||
| KR20100075190A | 2010-07-02 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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