Title:
BORON-CONTAINING STAINLESS STEEL HAVING EXCELLENT HOT WORKABILITY AND TENSILE PROPERTIES, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/105885
Kind Code:
A1
Abstract:
Disclosed are boron-containing stainless steel having excellent hot workability and tensile properties, and a manufacturing method therefor, whereby neutron shielding performance may be secured by the addition of boron, and the generation of a hypereutectic boride precipitate may be inhibited by the addition of cobalt, and thus hot workability and tensile properties may be improved. The boron-containing stainless steel having excellent hot workability and tensile properties, according to the present invention, comprises: 0.15 wt% or less of carbon (C); 2.0 wt% or less of manganese (Mn); 1.0 wt% or less of silicon (Si); 18 to 20 wt% of chromium (Cr); 12 to 15 wt% of nickel (Ni); 0.20 to 2.75 wt% of boron (B); 3 to 10 wt% of cobalt (Co); and a balance of Fe and inevitable impurities.
Inventors:
JANG JAE HOON (KR)
LEE TAE HO (KR)
LEE CHANG HOON (KR)
HA HEON YOUNG (KR)
KIM SUNG DAE (KR)
LEE TAE HO (KR)
LEE CHANG HOON (KR)
HA HEON YOUNG (KR)
KIM SUNG DAE (KR)
Application Number:
PCT/KR2019/014415
Publication Date:
May 28, 2020
Filing Date:
October 30, 2019
Export Citation:
Assignee:
KOREA INST MACH & MATERIALS (KR)
International Classes:
C22C38/52; C21D8/02; C22C38/02; C22C38/04; C22C38/54; C22C38/58
Foreign References:
| US3360363A | 1967-12-26 | |||
| KR20170074265A | 2017-06-30 | |||
| KR20100011688A | 2010-02-03 | |||
| US3772005A | 1973-11-13 | |||
| JPH1161342A | 1999-03-05 |
Other References:
"Development of Safety Material for Disaster Response/Prevention and Establishing Its Assessment Base", KOREA INSTITUTE OF MATERIALS SCIENCE ., December 2017 (2017-12-01), pages 1 - 71
Attorney, Agent or Firm:
LEE, In Haeng (KR)
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