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Austenitic Stainless Steel Material
Abstract: An austenitic stainless steel material having a chemical composition of, in mass%, C: 0.010-0.15%, Si: 0.10-2.00%, Mn: 0.10-3.00%, P: 0.060% or less, S: 0.010% or less, Ni: 16.0-25.0%, Cr: 20.0-29.0%, Mo: 0.08-1.0%, Sn: 0.001-0.080%, N: 0.010-0.15%, Co: 0.001-1.50%, Nb: 0-0.20%, remainder: Fe and impurities, F1 (= 16.0 + 8.0 C + 2.4 Si - 0.5 Mn + 0.3 Ni - 0.9 Cr - 3.1 Mo + 119 N + 2.0 Co) being 7.5-20.0 and F2 (= 286.2 + 337.9 C + 23.9 Si - 2.7 Mn + 0.1 Cr - 15.5 Mo + 339.4 Sn - 286.9 Nb) being 320.0 or less.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
16 July 2025
Publication Number
32/2025
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Applicants
NIPPON STEEL CORPORATION
6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
Inventors
1. JOTOKU, Kana
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
2. OSUKI, Takahiro
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
3. KURIHARA, Shinnosuke
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
4. IZAWA, Takahiro
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
5. TAKEDA, Kiyoko
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517067856-STATEMENT OF UNDERTAKING (FORM 3) [16-07-2025(online)].pdf | 2025-07-16 |
| 2 | 202517067856-REQUEST FOR EXAMINATION (FORM-18) [16-07-2025(online)].pdf | 2025-07-16 |
| 3 | 202517067856-PROOF OF RIGHT [16-07-2025(online)].pdf | 2025-07-16 |
| 4 | 202517067856-POWER OF AUTHORITY [16-07-2025(online)].pdf | 2025-07-16 |
| 5 | 202517067856-FORM 18 [16-07-2025(online)].pdf | 2025-07-16 |
| 6 | 202517067856-FORM 1 [16-07-2025(online)].pdf | 2025-07-16 |
| 7 | 202517067856-FIGURE OF ABSTRACT [16-07-2025(online)].pdf | 2025-07-16 |
| 8 | 202517067856-DECLARATION OF INVENTORSHIP (FORM 5) [16-07-2025(online)].pdf | 2025-07-16 |
| 9 | 202517067856-COMPLETE SPECIFICATION [16-07-2025(online)].pdf | 2025-07-16 |