Abstract: A steel sheet and a method for manufacturing same are provided. The steel sheet of the present invention comprises, by weight%, C: 0.03 to 0.18%, Si: 0 to 0.70%, Mn: 0.25 to 1.80%, Al: 0 to 0.70%, P: 0.050% or less, S: 0.0300% or less, N: 0.0300% or less, Ti: 0 to 0.08%, Nb: 0 to 0.06%, V: 0 to 0.07%, Ti+Nb+V: 0.03 to 0.10%, Cr: 0 to 0.80%, Mo: 0 to 0.80%, Cu: 0 to 0.80%, Ni: 0 to 0.80%, B: 0 to 0.0050%, Ca: 0 to 0.050%, REM except for Y: 0 to 0.050%, Mg: 0 to 0.050%, W: 0 to 0.50%, Zr: 0 to 0.50%, Sb: 0 to 0.50%, Sn: 0 to 0.50%, Y: 0 to 0.20%, Hf: 0 to 0.20%, the balance being Fe and inevitable impurities, and includes, by area%, perlite containing cementite: 1 to 15%, the balance being ferrite and unavoidably introduced structures.
| # | Name | Date |
|---|---|---|
| 1 | 202517062833-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [01-07-2025(online)].pdf | 2025-07-01 |
| 2 | 202517062833-STATEMENT OF UNDERTAKING (FORM 3) [01-07-2025(online)].pdf | 2025-07-01 |
| 3 | 202517062833-REQUEST FOR EXAMINATION (FORM-18) [01-07-2025(online)].pdf | 2025-07-01 |
| 4 | 202517062833-PROOF OF RIGHT [01-07-2025(online)].pdf | 2025-07-01 |
| 5 | 202517062833-PRIORITY DOCUMENTS [01-07-2025(online)].pdf | 2025-07-01 |
| 6 | 202517062833-POWER OF AUTHORITY [01-07-2025(online)].pdf | 2025-07-01 |
| 7 | 202517062833-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [01-07-2025(online)].pdf | 2025-07-01 |
| 8 | 202517062833-FORM 18 [01-07-2025(online)].pdf | 2025-07-01 |
| 9 | 202517062833-FORM 1 [01-07-2025(online)].pdf | 2025-07-01 |
| 10 | 202517062833-FIGURE OF ABSTRACT [01-07-2025(online)].pdf | 2025-07-01 |
| 11 | 202517062833-DECLARATION OF INVENTORSHIP (FORM 5) [01-07-2025(online)].pdf | 2025-07-01 |
| 12 | 202517062833-COMPLETE SPECIFICATION [01-07-2025(online)].pdf | 2025-07-01 |
| 13 | 202517062833-FORM-26 [30-09-2025(online)].pdf | 2025-09-30 |