Title:
耐食性及び耐水素脆性に優れた二相ステンレス鋼
Document Type and Number:
Japanese Patent JP6720942
Kind Code:
B2
Abstract:
To provide, at low cost, a two-phase stainless steel excellent in corrosion resistance and hydrogen embrittlement resistance.SOLUTION: The two-phase stainless steel excellent in corrosion resistance and hydrogen embrittlement resistance has a component composition comprising, in percentages by mass, C of 0.05% or less, Si of 0.03 to 1.0%, Mn of 0.05 to 2.0%, P of 0.05% or less, S of 0.005% or less, Cr of 17.0 to 28.0%, Ni of 4.0 to 18.0%, Mo of 0.1 to 6.0%, B of 0.031 to 0.49%, and N of 0.005% or less, with the balance consisting of Fe and inevitable impurities; and has a structure comprising at least a ferrite phase and an austenite phase, with the volume fraction of the austenite phase being 45 to 95%.SELECTED DRAWING: None
Inventors:
Fishing Noro
Application Number:
JP2017164696A
Publication Date:
July 08, 2020
Filing Date:
August 29, 2017
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C22C38/00; C22C38/58; C22C38/60
Domestic Patent References:
| JP52153821A | ||||
| JP6033191A | ||||
| JP2000355738A | ||||
| JP2019044203A |
Foreign References:
| CN106609343A |
Other References:
ORNATO, D.,High density sintering of duplex stainless steels,POWDER METALLURGY,2002年,Vol. 45, No. 4,p.290-293,ISSN 0032-5899
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Keisuke Kawahara
Nobuyuki Ichieda
Mitsutsugu Sugimura
Keisuke Kawahara
Nobuyuki Ichieda