Abstract: Provided is a steel sheet characterized by having a prescribed chemical composition and in that the depth, in the sheet thickness direction from the surface thereof, where the area fraction of pearlite is 0-20% is 3-100 µm, and the area fraction of pearlite having a circle-equivalent diameter of 5 µm or more is 0-30% at the depth where the area fraction of pearlite is 0-20%. Further provided is a hot-stamp molded body characterized by having a prescribed chemical composition and in that the average C concentration from the surface thereof to 20 µm in the thickness direction is 0.20 mass% or less, and the area fraction of martensite is 90% or more.
| # | Name | Date |
|---|---|---|
| 1 | 202517053676-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [03-06-2025(online)].pdf | 2025-06-03 |
| 2 | 202517053676-STATEMENT OF UNDERTAKING (FORM 3) [03-06-2025(online)].pdf | 2025-06-03 |
| 3 | 202517053676-REQUEST FOR EXAMINATION (FORM-18) [03-06-2025(online)].pdf | 2025-06-03 |
| 4 | 202517053676-PROOF OF RIGHT [03-06-2025(online)].pdf | 2025-06-03 |
| 5 | 202517053676-PRIORITY DOCUMENTS [03-06-2025(online)].pdf | 2025-06-03 |
| 6 | 202517053676-POWER OF AUTHORITY [03-06-2025(online)].pdf | 2025-06-03 |
| 7 | 202517053676-FORM 18 [03-06-2025(online)].pdf | 2025-06-03 |
| 8 | 202517053676-FORM 1 [03-06-2025(online)].pdf | 2025-06-03 |
| 9 | 202517053676-DECLARATION OF INVENTORSHIP (FORM 5) [03-06-2025(online)].pdf | 2025-06-03 |
| 10 | 202517053676-COMPLETE SPECIFICATION [03-06-2025(online)].pdf | 2025-06-03 |
| 11 | 202517053676-FORM-26 [03-09-2025(online)].pdf | 2025-09-03 |
| 12 | 202517053676-FORM 3 [29-09-2025(online)].pdf | 2025-09-29 |