Invention Grant
- Patent Title: High-strength steel sheet and manufacturing method therefor
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Application No.: US14392119Application Date: 2014-06-27
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Publication No.: US10041139B2Publication Date: 2018-08-07
- Inventor: Jun Ho Chung , Seong-Ju Kim , Hyo Dong Shin
- Applicant: Hyundai Steel Company
- Applicant Address: KR Incheon
- Assignee: HYUNDAI STEEL COMPANY
- Current Assignee: HYUNDAI STEEL COMPANY
- Current Assignee Address: KR Incheon
- Agency: Locke Lord LLP
- Agent Bryan D. Zerhusen
- Priority: KR10-2013-0074925 20130627; KR10-2013-0074926 20130627
- International Application: PCT/KR2014/005756 WO 20140627
- International Announcement: WO2014/209064 WO 20141231
- Main IPC: C21D9/46
- IPC: C21D9/46 ; C22C38/26 ; C22C38/24 ; C21D8/02 ; C22C38/38 ; C22C38/58 ; C22C38/04 ; C22C38/06 ; C22C38/12 ; C21D6/00 ; C21D1/26 ; C22C38/00 ; C22C38/22
Abstract:
A high-strength steel sheet according to the present invention comprises, by weight, 10.0-15.0% Mn, 6.0-9.0% Al, 0.5-2.0% Cr, 0.8-1.6% C, and 0.001-0.01% N, and further comprises, by weight, 0.02-0.1% V, 0.005-0.015% Nb, and 0.005-0.02% Mo, or further comprises 0.1-0.5 wt % TiAl particles. The high-strength steel sheet has a mixed structure comprising austenite and a fine k-carbide having a mean particle diameter of 10-500 nm.
Public/Granted literature
- US20160145706A1 HIGH-STRENGTH STEEL SHEET AND MANUFACTURING METHOD THEREFOR Public/Granted day:2016-05-26
Information query
