Title:
HIGH TOUGHNESS AND HIGH TENSILE STRENGTH THICK STEEL PLATE AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2015/140846
Kind Code:
A1
Abstract:
According to the present invention, plate thickness is set to be at least 100 mm and a throttle value according to plate-thickness direction tensile strength at the plate thickness center part is set to be at least 40%, and as a result, even in a thick and high strength steel plate requiring an increase in the additive amount of alloy elements, a thick and high tensile strength steel having a plate thickness center part with excellent strength and toughness can be obtained without increasing the size of equipment.
Inventors:
KITSUYA SHIGEKI (JP)
ICHIMIYA KATSUYUKI (JP)
HASE KAZUKUNI (JP)
KINUGAWA TERUHISA (JP)
MATSUNAGA NAOKI (JP)
HAYASHI KENJI (JP)
HORIE MASAYUKI (JP)
TERAZAWA YUSUKE (JP)
ENDO SHIGERU (JP)
ICHIMIYA KATSUYUKI (JP)
HASE KAZUKUNI (JP)
KINUGAWA TERUHISA (JP)
MATSUNAGA NAOKI (JP)
HAYASHI KENJI (JP)
HORIE MASAYUKI (JP)
TERAZAWA YUSUKE (JP)
ENDO SHIGERU (JP)
Application Number:
PCT/JP2014/004631
Publication Date:
September 24, 2015
Filing Date:
September 09, 2014
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/02; B21B1/38; C22C38/00; C22C38/58
Domestic Patent References:
| WO2014038200A1 | 2014-03-13 |
Foreign References:
| JPH04190902A | 1992-07-09 | |||
| JP2013095927A | 2013-05-20 | |||
| JP2009235524A | 2009-10-15 | |||
| JPH02197383A | 1990-08-03 |
Other References:
See also references of EP 3120941A4
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
Kenji Sugimura (JP)
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