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Hot Rolled Steel Sheet For Tube Of Hyper Tube Train And Method For Producing Same
Abstract: The present invention relates to a hot-rolled steel sheet for a tube of a hyper tube train and a method for producing same, the steel sheet having excellent yield strength, vibration damping ratio, weldability, and weld site-low temperature toughness. The hot-rolled steel sheet for a tube of a hyper tube train according to the present invention comprises, in weight%, carbon (C): 0.03-0.11%, silicon (Si): 0.3-1.5%, cobalt (Co): 1-3%, manganese (Mn): 1.2-2.2%, and the balance being Fe and inevitable impurities, and having, as a final microstructure, a composite structure including ferrite and pearlite.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
18 July 2025
Publication Number
32/2025
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. YANG, Hong-Seok
6261, Donghaean-ro
Nam-gu, Pohang-si
Gyeongsangbuk-do 37859
2. NOH, Min-Gyu
6261, Donghaean-ro
Nam-gu, Pohang-si
Gyeongsangbuk-do 37859
3. CHO, Jung-Hae
6261, Donghaean-ro
Nam-gu, Pohang-si
Gyeongsangbuk-do 37859
4. HA, Jun-Hyuk
6261, Donghaean-ro
Nam-gu, Pohang-si
Gyeongsangbuk-do 37859
5. KIM, Hyeon-Woo
6261, Donghaean-ro
Nam-gu, Pohang-si
Gyeongsangbuk-do 37859
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202547068898-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [18-07-2025(online)].pdf | 2025-07-18 |
| 2 | 202547068898-REQUEST FOR EXAMINATION (FORM-18) [18-07-2025(online)].pdf | 2025-07-18 |
| 3 | 202547068898-PROOF OF RIGHT [18-07-2025(online)].pdf | 2025-07-18 |
| 4 | 202547068898-PRIORITY DOCUMENTS [18-07-2025(online)].pdf | 2025-07-18 |
| 5 | 202547068898-POWER OF AUTHORITY [18-07-2025(online)].pdf | 2025-07-18 |
| 6 | 202547068898-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [18-07-2025(online)].pdf | 2025-07-18 |
| 7 | 202547068898-FORM 18 [18-07-2025(online)].pdf | 2025-07-18 |
| 8 | 202547068898-FORM 1 [18-07-2025(online)].pdf | 2025-07-18 |
| 9 | 202547068898-DECLARATION OF INVENTORSHIP (FORM 5) [18-07-2025(online)].pdf | 2025-07-18 |
| 10 | 202547068898-COMPLETE SPECIFICATION [18-07-2025(online)].pdf | 2025-07-18 |
| 11 | 202547068898-FORM 3 [07-08-2025(online)].pdf | 2025-08-07 |