Title:
二相ステンレス鋼
Document Type and Number:
Japanese Patent JP5870201
Kind Code:
B2
Abstract:
The present invention relates to duplex ferritic austenitic stainless steel for the use chemical industry for nitric acid environments wherein good uniform corrosion resistance and high strength are required. The microstructure of the stainless steel has 35-65 volume % of ferrite, preferably 45-55 volume % of ferrite, the balance being austenite. The chemical composition contains less than 0.03 weight % carbon, less than 1 weight % silicon, less than 3 weight % manganese, 26-29.5 weight % chromium, 5-8.5 weight % nickel, 1-3 weight % molybdenum, 0.25-0.35 weight % nitrogen, 1-3 weight % copper, the rest being iron and inevitable impurities occurring in stainless steels.
Inventors:
Shrine, Alexander
Young-sung, Yang, Wai.
Lil Yass, Mats
Pettersson, Rachel
Anderson, Yang-Olov
Hertzmann, Staffan
Young-sung, Yang, Wai.
Lil Yass, Mats
Pettersson, Rachel
Anderson, Yang-Olov
Hertzmann, Staffan
Application Number:
JP2014539373A
Publication Date:
February 24, 2016
Filing Date:
November 01, 2012
Export Citation:
Assignee:
OUTOKUMPU OYJ
International Classes:
C22C38/00; C22C38/44
Domestic Patent References:
| JP2007301601A | ||||
| JP5230600A | ||||
| JP2258956A | ||||
| JP2003503596A | ||||
| JP2008038214A |
Attorney, Agent or Firm:
Takao Katori