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High Strength Steel Plate With High Manganese Having Excellent Burring Workability
Abstract: There is provided a high strength steel plate with high manganese having excellent burring workability, which is used for structural members, bumper reinforcing materials and impact absorbing materials of automobiles, etc. The high strength steel plate includes, by weight: C: 0.2 to 1.0 %, Mn: 10 to 25 %, Al: 0.3 to 3.0 %, S: 0.05 % or less, P: 0.05 % or less, and the balance of Fe and inevitable impurities, wherein the chemical elements satisfactorily have a grain size of 18 D or more. The high strength steel plate can be useful to facilitate formation of automobile parts since it has excellent physical properties such as elongation and hole expansibility as well as strength.
Notices, Deadlines & Correspondence
Patent Information
Applicants
POSCO
Inventors
1. KIM Sung Kyu
2. CHIN Kwang Geun
Specification
HIGH STRENGTH STEEL PLATE WITH HIGH MANGANESE HAVING EXCELLENT BURRING WORKABILITY
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 8867-DELNP-2008-GPA-(28-04-2009).pdf | 2009-04-28 |
| 2 | Translation-Search Report.pdf | 2011-08-20 |
| 3 | Priority Document.pdf | 2011-08-20 |
| 4 | Power of Authority.pdf | 2011-08-20 |
| 5 | Form-5.pdf | 2011-08-20 |
| 6 | Form-3.pdf | 2011-08-20 |
| 7 | Form-1.pdf | 2011-08-20 |
| 8 | Drawings.pdf | 2011-08-20 |
| 9 | 8867-DELNP-2008-Form-18.pdf | 2011-08-20 |
| 10 | 8867-DELNP-2008-Correspondence-Others-(28-04-209).pdf | 2011-08-20 |
| 11 | 8867-delnp-2008-Form-3-(27-04-2015).pdf | 2015-04-27 |
| 12 | 8867-delnp-2008-Correspondence Others-(27-04-2015).pdf | 2015-04-27 |
| 13 | 8867-delnp-2008-Marked Claims-(24-09-2015).pdf | 2015-09-24 |
| 14 | 8867-delnp-2008-Form-2-(24-09-2015).pdf | 2015-09-24 |
| 15 | 8867-delnp-2008-Description (Complete)-(24-09-2015).pdf | 2015-09-24 |
| 16 | 8867-delnp-2008-Correspondence Others-(24-09-2015).pdf | 2015-09-24 |
| 17 | 8867-delnp-2008-Claims-(24-09-2015).pdf | 2015-09-24 |
| 18 | 8867-delnp-2008-Abstract-(24-09-2015).pdf | 2015-09-24 |
| 19 | 8867-DELNP-2008_EXAMREPORT.pdf | 2016-06-30 |
| 20 | Form 26 [15-03-2017(online)].pdf | 2017-03-15 |
| 21 | 8867-DELNP-2008-GPA-160317.pdf | 2017-03-21 |
| 22 | 8867-DELNP-2008-Correspondence-160317.pdf | 2017-03-21 |
| 23 | Other Patent Document [28-03-2017(online)].pdf | 2017-03-28 |
| 24 | 8867-DELNP-2008-PatentCertificateCoverLetter.pdf | 2017-05-18 |
| 25 | 8867-DELNP-2008-RELEVANT DOCUMENTS [29-03-2018(online)].pdf | 2018-03-29 |
| 26 | 8867-DELNP-2008-RELEVANT DOCUMENTS [30-03-2019(online)].pdf | 2019-03-30 |