Title:
SHEET STEEL AND METHOD FOR MANUFACTURING SHEET STEEL
Document Type and Number:
WIPO Patent Application WO/2021/167023
Kind Code:
A1
Abstract:
The present invention provides high-strength thin sheet steel having superior ductility (total elongation ≥15%), high strength (TS ≥500 MPa), low yield elongation (≤10%), and sufficient upper yield stress (≥400 MPa), and, in particular, a thickness of 0.1 mm to 1.0 mm for container use. The sheet steel has a metal composition having a prescribed component composition, and containing, in terms of area ratio, at least 84.0% ferrite, 0.5% to 10.0% martensite, and 0.1% to 10.0% bainite.
Inventors:
DOBASHI NAMI (JP)
SHIIMORI FUSAE (JP)
SAITO HAYATO (JP)
KARIYA NOBUSUKE (JP)
SHIIMORI FUSAE (JP)
SAITO HAYATO (JP)
KARIYA NOBUSUKE (JP)
Application Number:
PCT/JP2021/006212
Publication Date:
August 26, 2021
Filing Date:
February 18, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D9/46; C22C38/00; C22C38/14; C22C38/54
Domestic Patent References:
| WO2016157878A1 | 2016-10-06 | |||
| WO2020105406A1 | 2020-05-28 |
Foreign References:
| JP2003293083A | 2003-10-15 | |||
| JPH04337049A | 1992-11-25 | |||
| JP2016003393A | 2016-01-12 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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