View All Documents & Correspondence
Plated Steel Sheet
Abstract: The present invention provides a high-strength plated steel sheet excellent in LME resistance. This plated steel sheet has a Zn-containing plating layer on a steel sheet. The steel sheet has a tensile strength of 780 MPa or higher; the steel sheet has a chemical component composition comprising, by mass%, 0.05 to 0.40% of C, 0.2 to 3.0% of Si, 0.1 to 5.0% of Mn, 0.4 to 1.50% of sol. Al, etc., and the balance Fe and impurities; and in any vertical cross-section of the steel sheet, a region up to 2 µm deep from the surface contains ferrite phases having an equivalent circle diameter of 1 µm or less at a number density of 2 to 30/µm2, and the ferrite phase contains internal oxides having an equivalent circle diameter of 2 to 100 nm at a number density of 3/µm2 or higher.
Notices, Deadlines & Correspondence
Patent Information
Applicants
NIPPON STEEL CORPORATION
Inventors
1. MITSUNOBU, Takuya
2. MATSUDA, Keitaro
3. TAKEBAYASHI, Hiroshi
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317087639-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [21-12-2023(online)].pdf | 2023-12-21 |
| 2 | 202317087639-STATEMENT OF UNDERTAKING (FORM 3) [21-12-2023(online)].pdf | 2023-12-21 |
| 3 | 202317087639-PROOF OF RIGHT [21-12-2023(online)].pdf | 2023-12-21 |
| 4 | 202317087639-PRIORITY DOCUMENTS [21-12-2023(online)].pdf | 2023-12-21 |
| 5 | 202317087639-POWER OF AUTHORITY [21-12-2023(online)].pdf | 2023-12-21 |
| 6 | 202317087639-FORM 1 [21-12-2023(online)].pdf | 2023-12-21 |
| 7 | 202317087639-DRAWINGS [21-12-2023(online)].pdf | 2023-12-21 |
| 8 | 202317087639-DECLARATION OF INVENTORSHIP (FORM 5) [21-12-2023(online)].pdf | 2023-12-21 |
| 9 | 202317087639-COMPLETE SPECIFICATION [21-12-2023(online)].pdf | 2023-12-21 |
| 10 | 202317087639-FORM 3 [24-04-2024(online)].pdf | 2024-04-24 |
| 11 | 202317087639-FORM 18 [22-09-2025(online)].pdf | 2025-09-22 |