Title:
Austenitic stainless steel sheet
Document Type and Number:
Japanese Patent JP5988008
Kind Code:
B2
Abstract:
There is provided a precipitation-strengthened stainless steel plate having a chemical composition: by mass %, C: 0.01 to 0.10%; Si: 0.02 to 3.0%; Mn: 0.02 to 2.0%; Ni: 20 to 30%, Cr: 14 to 25.0%; Mo: 1.0 to 4.0%; Cu: 0.01 to 2.0%; Co: 0.01 to 0.5%; V: 0.1 to 1.0%; B: 0.001 to 0.01%; N: 0.02% or less; Ti: 2.0 to 5.0%; Al: 0.002 to 5.0%; Ti+Al: 3.3 to 6.0%; and the balance being Fe and impurities, the precipitation-strengthened stainless steel plate having a Vickers hardness Hv of 300 or higher, wherein the number density γ′: Ni3(Al, Ti), which is an intermetallic compound, is 0 to 5/μm2. As a heat resistant component material, the precipitation-strengthened stainless steel plate is less expensive than conventional Ni-based alloys such as NCF625 and NCF718, and more excellent in high temperature properties than a precipitation-strengthened heat-resistant stainless steel such as SUH660.
Inventors:
Masami Sawada
Yuichi Fukumura
Yuichi Fukumura
Application Number:
JP2016501926A
Publication Date:
September 07, 2016
Filing Date:
September 15, 2015
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
C22C38/00; C22C38/58; F16J15/08
Domestic Patent References:
| JP2010520956A | 2010-06-17 | |||
| JPH09506933A | 1997-07-08 | |||
| JP2008304059A | 2008-12-18 | |||
| JP2000329232A | 2000-11-30 | |||
| JPH11107720A | 1999-04-20 | |||
| JP2005002451A | 2005-01-06 | |||
| JP2014047409A | 2014-03-17 | |||
| JP2010520956A | 2010-06-17 | |||
| JPH09506933A | 1997-07-08 | |||
| JP2008304059A | 2008-12-18 | |||
| JP2000329232A | 2000-11-30 | |||
| JPH11107720A | 1999-04-20 | |||
| JP2005002451A | 2005-01-06 | |||
| JP2014047409A | 2014-03-17 |
Foreign References:
| US20130266477A1 | 2013-10-10 | |||
| US20130266477A1 | 2013-10-10 |
Attorney, Agent or Firm:
Patents corporation Blitas