Title:
AUSTENITIC STAINLESS STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2024/070647
Kind Code:
A1
Abstract:
Provided is an austenitic stainless steel sheet which has a chemical composition comprising, in % by mass, 0.150% or less of C, 2.0% or less of Si, 3.00% or less of Mn, 0.060% or less of P, 0.0080% or less of S, 16.0 to 22.0% of Cr, 3.00% or less of Mo, 8.0 to 15.0% of Ni, 2.0% or less of Cu, 0.080% or less of Al, 0.250% or less of N, optional elements, and a remainder comprising Fe and impurities, has a maximum value of a value A [= Cr+2Si+5Mo+10Al] in a region lying between the outermost surface and a position located at a depth of 20 nm of 45 or more and a minimum value of a value B [=Cr+Ni+Mn+Cu+8N] in a region lying between the outermost surface and a position located at a depth of 50 nm of 25 or more when measured by GDS, and has a thickness of 4.5 mm or more.
Inventors:
MATSUMOTO MITSUKI (JP)
HATANO MASAHARU (JP)
YAMAMOTO YOICHI (JP)
INUTSUKA JUNPEI (JP)
HATANO MASAHARU (JP)
YAMAMOTO YOICHI (JP)
INUTSUKA JUNPEI (JP)
Application Number:
PCT/JP2023/033133
Publication Date:
April 04, 2024
Filing Date:
September 12, 2023
Export Citation:
Assignee:
NIPPON STEEL STAINLESS STEEL CORP (JP)
International Classes:
C22C38/00; C21D8/02; C22C38/58
Domestic Patent References:
| WO2017056619A1 | 2017-04-06 |
Foreign References:
| CN114351051A | 2022-04-15 | |||
| CN114774797A | 2022-07-22 | |||
| JP2009299174A | 2009-12-24 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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