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Qt Heat Treated High Carbon Hot Rolled Steel Sheet, High Carbon Cold Rolled Steel Sheet, Qt Heat Treated High Carbon Cold Rolled Steel Sheet, And Manufacturing Methods Thereof
Abstract: Provided are a QT heat treated high carbon hot rolled steel sheet, a high carbon cold rolled steel sheet, a QT heat treated high carbon cold rolled steel sheet, and manufacturing methods thereof, wherein the QT heat treated high carbon hot rolled steel sheet comprises, in weight%, C: 1.0-1.4%, Si: 0.1-0.4%, Mn: 0.1-0.8%, Cr: 0.3-11%, W: 0.05-2.5%, P: 0.03% or less, S: 0.03% or less, Al: 0.02% or less, and the balance being Fe and other inevitable impurities, the average size of carbides being 0.1-20 ?.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
11 July 2023
Publication Number
48/2023
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. KIM, Sun-Mi
c/o Pohang Iron & Steel Works, 6262, Donghaean-ro, Nam-gu
Pohang-si,
Gyeongsangbuk-do 37877
2. CHOI, Jae-Hun
c/o Pohang Iron & Steel Works, 6262, Donghaean-ro, Nam-gu
Pohang-si,
Gyeongsangbuk-do 37877
3. KIM, Hak-Jun
c/o Pohang Iron & Steel Works, 6262, Donghaean-ro, Nam-gu
Pohang-si,
Gyeongsangbuk-do 37877
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317046615-STATEMENT OF UNDERTAKING (FORM 3) [11-07-2023(online)].pdf | 2023-07-11 |
| 2 | 202317046615-REQUEST FOR EXAMINATION (FORM-18) [11-07-2023(online)].pdf | 2023-07-11 |
| 3 | 202317046615-PROOF OF RIGHT [11-07-2023(online)].pdf | 2023-07-11 |
| 4 | 202317046615-PRIORITY DOCUMENTS [11-07-2023(online)].pdf | 2023-07-11 |
| 5 | 202317046615-POWER OF AUTHORITY [11-07-2023(online)].pdf | 2023-07-11 |
| 6 | 202317046615-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [11-07-2023(online)].pdf | 2023-07-11 |
| 7 | 202317046615-FORM 18 [11-07-2023(online)].pdf | 2023-07-11 |
| 8 | 202317046615-FORM 1 [11-07-2023(online)].pdf | 2023-07-11 |
| 9 | 202317046615-FIGURE OF ABSTRACT [11-07-2023(online)].pdf | 2023-07-11 |
| 10 | 202317046615-DECLARATION OF INVENTORSHIP (FORM 5) [11-07-2023(online)].pdf | 2023-07-11 |
| 11 | 202317046615-COMPLETE SPECIFICATION [11-07-2023(online)].pdf | 2023-07-11 |
| 12 | 202317046615-FORM-26 [13-09-2023(online)].pdf | 2023-09-13 |
| 13 | 202317046615-Others-150923.pdf | 2023-10-30 |
| 14 | 202317046615-GPA-150923.pdf | 2023-10-30 |
| 15 | 202317046615-Correspondence-150923.pdf | 2023-10-30 |
| 16 | 202317046615-FORM 3 [22-12-2023(online)].pdf | 2023-12-22 |