HIGH YOUNG'S MODULUS STEEL PLATE AND PROCESS FOR PRODUCTION THEREOF

Title:

HIGH YOUNG'S MODULUS STEEL PLATE AND PROCESS FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2008/056812

Kind Code:

A1

Abstract:

A steel plate exhibiting a high Young's modulus in the direction of rolling as determined by the static tensile method, which has a composition substantially containing by mass C: 0.005 to 0.200%, Si: 2.50% or below, Mn: 0.10 to 3.00%, N: 0.0100% or below, Nb: 0.005 to 0.100%, and Ti: 0.002 to 0.150% and satisfying the relationship: Ti-48/14ŒN>0.0005 and in which at 1/6 of theplate thickness, the sum of the X-ray random intensity ratios of {100}<001> and {110}<001> orientations is 5 or below and the sum of the maximum value of the X-ray random intensity ratios of a group of {110}<111> to {110}<112> orientations and the X-ray random intensity ratio of {211}<111> orientation is 5 or above; and a process for the production of the steel plate.

Inventors:

SUGIURA NATSUKO (JP)
MARUYAMA NAOKI (JP)
TAKAHASHI MANABU (JP)
NAKAMURA YOHJI (JP)
HANYA KOJI (JP)

Application Number:

PCT/JP2007/072042

Publication Date:

May 15, 2008

Filing Date:

November 07, 2007

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
SUGIURA NATSUKO (JP)
MARUYAMA NAOKI (JP)
TAKAHASHI MANABU (JP)
NAKAMURA YOHJI (JP)
HANYA KOJI (JP)

International Classes:

C22C38/00; B21B3/00; C21D9/46; C22C38/14; C22C38/58; C23C2/06; C23C2/38

Foreign References:

JP2005273001A	2005-10-06
JP2005314793A	2005-11-10
JP2006183130A	2006-07-13
JP2006183131A	2006-07-13
JPH04147917A	1992-05-21
JP2005273001A	2005-10-06
JPH0611503A	1994-01-21
JP2007046146A	2007-02-22
JP2007146275A	2007-06-14

Other References: