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Title:
NON-MAGNETIC AUSTENITIC STAINLESS STEEL HAVING IMPROVED STRENGTH AND SURFACE CONDUCTIVITY
Document Type and Number:
WIPO Patent Application WO/2019/124689
Kind Code:
A1
Abstract:
Disclosed is a non-magnetic austenitic stainless steel having improved strength and surface conductivity. Austenitic stainless steel according to one embodiment of the present invention comprises, by wt%, 0.07-0.2% of C, 0.15-0.4% of N, 0.8-2% of Si, 16-22% of Mn, 0.01% or less of S (excluding 0), 12.5-20% of Cr, 1-3% of Cu, and the balance of Fe and other inevitable impurities, and satisfies the following formula (1). (1) Ni + 0.65Cr + 1.05Mn + 0.35Si + 12.6C + 33.6N ≥ 40 (wherein Ni, Cr, Mn, Si, C and N are the wt% of each of the elements.)

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Inventors:
KIM JONG-HEE (KR)
KIM KWANG MIN (KR)
SEO BO-SUNG (KR)
KIM HAK (KR)
Application Number:
PCT/KR2018/011762
Publication Date:
June 27, 2019
Filing Date:
October 05, 2018
Export Citation:
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Assignee:
POSCO (KR)
International Classes:
C22C38/38; C21D7/02; C22C38/00; C22C38/20
Foreign References:
CN101148740A2008-03-26
US5094812A1992-03-10
KR101345048B12013-12-26
JPH09195007A1997-07-29
KR20090035710A2009-04-10
JP2017061741A2017-03-30
CN103667947A2014-03-26
Other References:
See also references of EP 3705595A4
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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