FLEXIBLE SHEET STEEL FOR CAN AND PROCESS FOR PRODUCING THE SAME

WIPO Patent Application WO/2006/100796

A1

A flexible sheet steel for cans which is excellent in weldability, non-aging properties, and processability and reduced in can height decrease. The sheet steel is characterized by containing 0.0015-0.0050% by mass carbon, 0.1-0.8% by mass manganese, 0.01-0.10% by mass aluminum, 0.0015-0.0070% by mass nitrogen, niobium in an amount 4-20 times the carbon amount (0.52-2.58 times in terms of atomic ratio to the carbon), and boron in an amount 0.15-0.75 times the nitrogen amount (0.20-0.97 times in terms of atomic ratio to the nitrogen), the remainder comprising iron and unavoidable impurities, and by being produced by the continuous annealing method. It is further characterized by having an average Lankford value r_ave in the range of 1.3-1.8 and satisfying at least one of the three relationships r00.3 and that the degree of tempering is in the range of T2 to T3.5.

HOTTA EISUKE (JP)
UMEMOTO MASASHI (JP)
KOJIMA KATSUMI (JP)
IWASA HIROKI (JP)
MATSUMOTO KAZUHIRO (JP)
KOBAYASHI KOJI (JP)
AWAJIYA YUTAKA (JP)
TADA MASAKI (JP)

PCT/JP2005/017565

September 28, 2006

September 16, 2005

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JFE STEEL CORP (JP)
HOTTA EISUKE (JP)
UMEMOTO MASASHI (JP)
KOJIMA KATSUMI (JP)
IWASA HIROKI (JP)
MATSUMOTO KAZUHIRO (JP)
KOBAYASHI KOJI (JP)
AWAJIYA YUTAKA (JP)
TADA MASAKI (JP)

C22C38/00; C21D9/46

JPH1112686A	1999-01-19
JPH10280089A	1998-10-20
JP2001131695A	2001-05-15
JPH11158580A	1999-06-15
JPH09310150A	1997-12-02
JPH0397813A	1991-04-23
JP2003231948A	2003-08-19

Ochiai, Kenichiro c/o Patent, Application Dept (JFE TECHNO-RESEARCH CORPORATION 7th Floor, Yanagiya Building, 1-10, Nihonbashi 2-chom, Chuo-ku Tokyo, JP)

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