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Plated Steel Sheets For Hot Press Forming Having Excellent Hydrogen Brittleness Resistance And Impact Resistance, Hot Press Formed Parts, And Manufacturing Methods Thereof
Abstract: Provided are plated steel sheets for hot press forming, hot press formed parts, and manufacturing methods thereof, the plated steel sheets comprising: a base steel sheet containing, in weight%, C: 0.07-0.5%, Si: 0.05-1%, Mn: 0.5-5%, P: 0.001-0.015%, S: 0.0001-0.02%, Al: 0.01-0.1%, Cr: 0.01-1%, N: 0.001-0.02%, Ti: 0.1% or less, B: 0.01% or less, Sn: 0.01-0.1%, and the balance being Fe and inevitable impurities; an aluminum or aluminum alloy plating layer disposed on at least one surface of the base steel sheet; and an Sn-enriched layer provided between the base steel sheet and the plating layer, wherein the Sn-enriched layer satisfies a specific relationship.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
20 April 2023
Publication Number
47/2023
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. OH, Jin-Keun
c/o Gwangyang Iron & Steel Works, 20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
2. KIM, Seong-Woo
c/o Gwangyang Iron & Steel Works, 20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
3. KIM, Sang-Heon
c/o Gwangyang Iron & Steel Works, 20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
4. CHUN, Hyo-Sik
c/o Gwangyang Iron & Steel Works, 20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317028819-STATEMENT OF UNDERTAKING (FORM 3) [20-04-2023(online)].pdf | 2023-04-20 |
| 2 | 202317028819-REQUEST FOR EXAMINATION (FORM-18) [20-04-2023(online)].pdf | 2023-04-20 |
| 3 | 202317028819-PROOF OF RIGHT [20-04-2023(online)].pdf | 2023-04-20 |
| 4 | 202317028819-PRIORITY DOCUMENTS [20-04-2023(online)].pdf | 2023-04-20 |
| 5 | 202317028819-POWER OF AUTHORITY [20-04-2023(online)].pdf | 2023-04-20 |
| 6 | 202317028819-FORM 18 [20-04-2023(online)].pdf | 2023-04-20 |
| 7 | 202317028819-FORM 1 [20-04-2023(online)].pdf | 2023-04-20 |
| 8 | 202317028819-FIGURE OF ABSTRACT [20-04-2023(online)].pdf | 2023-04-20 |
| 9 | 202317028819-DRAWINGS [20-04-2023(online)].pdf | 2023-04-20 |
| 10 | 202317028819-DECLARATION OF INVENTORSHIP (FORM 5) [20-04-2023(online)].pdf | 2023-04-20 |
| 11 | 202317028819-COMPLETE SPECIFICATION [20-04-2023(online)].pdf | 2023-04-20 |
| 12 | 202317028819.pdf | 2023-05-02 |
| 13 | 202317028819-FORM-26 [11-05-2023(online)].pdf | 2023-05-11 |
| 14 | 202317028819-FORM-26 [15-05-2023(online)].pdf | 2023-05-15 |
| 15 | 202317028819-Others-170523.pdf | 2023-06-27 |
| 16 | 202317028819-GPA-170523.pdf | 2023-06-27 |
| 17 | 202317028819-Correspondence-170523.pdf | 2023-06-27 |
| 18 | 202317028819-FORM 3 [28-09-2023(online)].pdf | 2023-09-28 |
| 19 | 202317028819-FER.pdf | 2025-11-07 |
Search Strategy
| 1 | 202317028819_SearchStrategyNew_E_SearchStrategyE_06-11-2025.pdf |