Abstract: Provided is a hot rolled steel sheet which: has a predetermined chemical composition; contains 80 98% of at least one of ferrite and bainite in total and 2 10% of martensite in terms of areal percentage; has a metallic structure in which when a boundary having an azimuth difference of 15?? or more is defined as a grain boundary and a region surrounded by the grain boundary and has a circle equivalent diameter of 0.3 ??m or more is defined as a crystal grain the proportion of the crystal grain having an in grain azimuth difference of 5 14?? is 10 60% in terms of areal percentage; and has a surface roughness Ra of less than 1.50 ??m wherein a difference between the maximum value and the minimum value of the surface roughness Ra is 0.50 ??m or less.
| # | Name | Date |
|---|---|---|
| 1 | 202517045546-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [12-05-2025(online)].pdf | 2025-05-12 |
| 2 | 202517045546-STATEMENT OF UNDERTAKING (FORM 3) [12-05-2025(online)].pdf | 2025-05-12 |
| 3 | 202517045546-REQUEST FOR EXAMINATION (FORM-18) [12-05-2025(online)].pdf | 2025-05-12 |
| 4 | 202517045546-PROOF OF RIGHT [12-05-2025(online)].pdf | 2025-05-12 |
| 5 | 202517045546-PRIORITY DOCUMENTS [12-05-2025(online)].pdf | 2025-05-12 |
| 6 | 202517045546-POWER OF AUTHORITY [12-05-2025(online)].pdf | 2025-05-12 |
| 7 | 202517045546-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [12-05-2025(online)].pdf | 2025-05-12 |
| 8 | 202517045546-FORM 18 [12-05-2025(online)].pdf | 2025-05-12 |
| 9 | 202517045546-FORM 1 [12-05-2025(online)].pdf | 2025-05-12 |
| 10 | 202517045546-DRAWINGS [12-05-2025(online)].pdf | 2025-05-12 |
| 11 | 202517045546-DECLARATION OF INVENTORSHIP (FORM 5) [12-05-2025(online)].pdf | 2025-05-12 |
| 12 | 202517045546-COMPLETE SPECIFICATION [12-05-2025(online)].pdf | 2025-05-12 |
| 13 | 202517045546-MARKED COPIES OF AMENDEMENTS [16-05-2025(online)].pdf | 2025-05-16 |
| 14 | 202517045546-FORM 13 [16-05-2025(online)].pdf | 2025-05-16 |
| 15 | 202517045546-AMMENDED DOCUMENTS [16-05-2025(online)].pdf | 2025-05-16 |
| 16 | 202517045546-FORM 3 [11-09-2025(online)].pdf | 2025-09-11 |