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Ferritic Stainless Steel With Improved Formability And Manufacturing Method Therefor
Abstract: The disclosed specification relates to a ferritic stainless steel having improved formability by controlling the average grain diameter through alloy components and manufacturing processes and to a method for manufacturing same. A ferritic stainless steel having improved formability, according to one embodiment, may comprise, in percentage by weight: C: 0.0005-0.02%; N: 0.005-0.02%; Si: 0.01-1.0%; Mn: 0.01-1.0%; P: 0.001-0.05%; Cr: 10.0-30.0%; Nb: 0.05-0.5%; Ti: 0.05-0.5%; and the remainder being Fe and inevitable impurities, wherein an Erichsen height may be 6-50 mm.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
27 May 2025
Publication Number
24/2025
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Applicants
POSCO CO., LTD
6261, Donghaean-ro, Nam-gu
Pohang-si
Gyeongsangbuk-do 37859
Inventors
1. PARK, Jieon
325-304, 303 Jigok-ro, Nam-gu
Pohang-si
Gyeongsangbuk-do 37671
2. PAEK, Jongsu
1F, 16-14 Jeokgyeji-gil, Yeonil-eup, Nam-gu
Pohang-si
Gyeongsangbuk-do 37855
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517050741-STATEMENT OF UNDERTAKING (FORM 3) [27-05-2025(online)].pdf | 2025-05-27 |
| 2 | 202517050741-REQUEST FOR EXAMINATION (FORM-18) [27-05-2025(online)].pdf | 2025-05-27 |
| 3 | 202517050741-POWER OF AUTHORITY [27-05-2025(online)].pdf | 2025-05-27 |
| 4 | 202517050741-FORM 18 [27-05-2025(online)].pdf | 2025-05-27 |
| 5 | 202517050741-FORM 1 [27-05-2025(online)].pdf | 2025-05-27 |
| 6 | 202517050741-DRAWINGS [27-05-2025(online)].pdf | 2025-05-27 |
| 7 | 202517050741-DECLARATION OF INVENTORSHIP (FORM 5) [27-05-2025(online)].pdf | 2025-05-27 |
| 8 | 202517050741-COMPLETE SPECIFICATION [27-05-2025(online)].pdf | 2025-05-27 |
| 9 | 202517050741-RELEVANT DOCUMENTS [29-05-2025(online)].pdf | 2025-05-29 |
| 10 | 202517050741-MARKED COPIES OF AMENDEMENTS [29-05-2025(online)].pdf | 2025-05-29 |
| 11 | 202517050741-FORM 13 [29-05-2025(online)].pdf | 2025-05-29 |
| 12 | 202517050741-AMMENDED DOCUMENTS [29-05-2025(online)].pdf | 2025-05-29 |
| 13 | 202517050741-Verified English translation [30-05-2025(online)].pdf | 2025-05-30 |
| 14 | 202517050741-Verified English translation [30-05-2025(online)]-1.pdf | 2025-05-30 |
| 15 | 202517050741-FORM-26 [30-05-2025(online)].pdf | 2025-05-30 |
| 16 | 202517050741-FORM 3 [07-11-2025(online)].pdf | 2025-11-07 |
| 17 | 202517050741-Proof of Right [10-11-2025(online)].pdf | 2025-11-10 |