Title:
TWO-PHASE STAINLESS STEEL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS
Document Type and Number:
Japanese Patent JP2020023736
Kind Code:
A
Abstract:
To provide a two-phase stainless steel that reduces the risks of deposition of both Al nitride and Cr nitride, harmful deposits, and is excellent in low-temperature toughness.SOLUTION: A two-phase stainless steel contains, in mass%, C: 0.001-0.030%, Si: 0.05-0.5%, S: 0.002% or less, Ni: 6-7.5%, Cr: 23-26%, Mo: 2-4.0%, N: 0.20-0.40%, Al: 0.005-0.03%, Mn: 0.05-0.3% and B: 0.0001-0.0050%, with the balance being Fe and inevitable impurities, and is controlled so that an impact value defined in JIS Z2242 is 87.5 J/cmor more at -46±2°C.SELECTED DRAWING: Figure 1
Inventors:
WATANABE TAKAYUKI
WEI FU GAO
WEI FU GAO
Application Number:
JP2018149215A
Publication Date:
February 13, 2020
Filing Date:
August 08, 2018
Export Citation:
Assignee:
NIPPON YAKIN KOGYO CO LTD
International Classes:
C22C38/00; C22C38/54
Domestic Patent References:
| JP2014189825A | 2014-10-06 | |||
| JP2005105346A | 2005-04-21 | |||
| JP2008214713A | 2008-09-18 | |||
| JPH07197130A | 1995-08-01 | |||
| JPH08170153A | 1996-07-02 |
Attorney, Agent or Firm:
Suenari Mikio