HOT-ROLLED STEEL SHEET, COLD-ROLLED STEEL SHEET, GALVANIZED STEEL SHEET, AND PROCESSES FOR PRODUCING THESE

Title:

HOT-ROLLED STEEL SHEET, COLD-ROLLED STEEL SHEET, GALVANIZED STEEL SHEET, AND PROCESSES FOR PRODUCING THESE

Document Type and Number:

WIPO Patent Application WO/2012/014926

Kind Code:

A1

Abstract:

Disclosed is a hot-rolled steel sheet in which at least the sheet-thickness central part which ranges from 5/8 to 3/8 the sheet thickness in terms of distance from the steel sheet surface has an average X-ray random intensity ratio for the {100}<011> to {223}<110> orientations of 1.0-6.0 and has an X-ray random intensity ratio for the {332}<113> crystal orientation of 1.0-5.0. The steel sheet further has an rC, which is the value of r in a direction perpendicular to the rolling direction, of 0.70-1.10 and an r30, which is the value of r in a direction having an angle of 30º with respect to the rolling direction, of 0.70-1.10.

Inventors:

FUJITA NOBUHIRO (JP)
HAYASHI KUNIO (JP)
OKAMOTO RIKI (JP)
TAKAHASHI MANABU (JP)
KISHIMOTO TETSUO (JP)
YOSHIDA HIROSHI (JP)

Application Number:

PCT/JP2011/067070

Publication Date:

February 02, 2012

Filing Date:

July 27, 2011

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
FUJITA NOBUHIRO (JP)
HAYASHI KUNIO (JP)
OKAMOTO RIKI (JP)
TAKAHASHI MANABU (JP)
KISHIMOTO TETSUO (JP)
YOSHIDA HIROSHI (JP)

International Classes:

C22C38/06; C21D8/02; C21D9/46; C22C38/38; C23C2/06; C23C2/28

Foreign References:

JP2009263718A	2009-11-12
JP2000119804A	2000-04-25
JP2003160836A	2003-06-06
JP2010090476A	2010-04-22
JP2007291514A	2007-11-08
JP2000144314A	2000-05-26

Other References: