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Title:
VACUUM TUBE STEEL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/125660
Kind Code:
A1
Abstract:
A vacuum tube steel according to one aspect of the present invention comprises, by wt%, 0.1-0.2% of C, 0.05-0.5% of Si, 1.0-1.6% of Mn, 0.5-1.0% of Ni, 1.5-4.0% of Cr, and the balance of Fe and inevitable impurities, and can include, as a microstructure, a composite structure of ferrite and pearlite.

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Inventors:
YANG HONG-SEOK (KR)
CHOI JAE-HUN (KR)
KIM HAK-JUN (KR)
SEO SEOK-JONG (KR)
Application Number:
PCT/KR2020/017828
Publication Date:
June 24, 2021
Filing Date:
December 09, 2020
Export Citation:
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Assignee:
POSCO (KR)
International Classes:
C22C38/58; B21B1/24; B21B3/00; C21D8/02; C22C38/48; C22C38/50
Foreign References:
JP2015127447A2015-07-09
KR100351791B12002-11-18
KR20160082602A2016-07-08
EP2832889B12018-10-10
US5454883A1995-10-03
US20190170276A12019-06-06
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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