Title:
AUSTENITIC STAINLESS STEEL SHEET, METHOD FOR PRODUCING SAME, AND SHEET SPRING
Document Type and Number:
WIPO Patent Application WO/2023/105947
Kind Code:
A1
Abstract:
This austenitic stainless steel sheet contains, by mass, C: 0.04-0.11%, Si: 2.0-3.5%, Mn: 1.50% or less, Ni: 6.0-10.0%, Cr: 12.0-15.0%, Mo: 1.3-3.2%, Cu: 1.00% or less, N: 0.03-0.15%, and O: 0.0050% or less, the remainder being Fe and impurities. The value of Md30 represented by formula (1) is -30 to 0°C, formula (1): Md30 = 551-462(C+N)-9.2Si-8.1Mn-29(Ni+Cu)-13.7Cr-18.5Mo (in the formula, the element symbols represent the content (mass%) of respective elements). The austenitic stainless steel sheet has a metal structure in which the content of the strain-induced martensite phase is 30 vol% or more and has a thickness of 0.15 mm or less.
Inventors:
HIRAKAWA NAOKI (JP)
NISHIMURA YASUSHI (JP)
NISHIMURA YASUSHI (JP)
Application Number:
PCT/JP2022/039182
Publication Date:
June 15, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
NIPPON STEEL STAINLESS STEEL CORP (JP)
International Classes:
C22C38/00; C21D9/46; C22C38/44; C22C38/60
Domestic Patent References:
| WO2021230244A1 | 2021-11-18 |
Foreign References:
| JP2012097350A | 2012-05-24 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
Download PDF:
Previous Patent: LIGHT SOURCE DEVICE AND DISPLAY DEVICE
Next Patent: SEALING MATERIAL, AND SOFC OR SOEC HAVING SEALING MATERIAL
Next Patent: SEALING MATERIAL, AND SOFC OR SOEC HAVING SEALING MATERIAL