Invention Grant
- Patent Title: Steel sheet excellent in workability
- Patent Title (中): 钢板工作性优良
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Application No.: US12185423Application Date: 2008-08-04
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Publication No.: US08052807B2Publication Date: 2011-11-08
- Inventor: Naoki Yoshinaga , Nobuhiro Fujita , Manabu Takahashi , Koji Hashimoto , Shinya Sakamoto , Kaoru Kawasaki , Yasuhiro Shinohara , Takehide Senuma
- Applicant: Naoki Yoshinaga , Nobuhiro Fujita , Manabu Takahashi , Koji Hashimoto , Shinya Sakamoto , Kaoru Kawasaki , Yasuhiro Shinohara , Takehide Senuma
- Applicant Address: JP Tokyo
- Assignee: Nippon Steel Corporation
- Current Assignee: Nippon Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: Baker Botts LLP
- Priority: JP2001-255384 20010824; JP2001-255385 20010824; JP2002-153030 20020527
- Main IPC: C22C38/02
- IPC: C22C38/02 ; C22C38/04 ; C22C38/06

Abstract:
The present invention provides a steel sheet excellent in workability, which may be used for components of an automobile or the like, and a method for producing the same. More specifically, according to one exemplary embodiment of the present invention, a steel sheet excellent in workability, including in mass, 0.08 to 0.25% C, 0.001 to 1.5% Si, 0.01 to 2.0% Mn, 0.001 to 0.06% P, at most 0.05% S, 0.001 to 0.007% N, 0.008 to 0.2% Al, at least 0.01% Fe. The steel sheet having an average r-value of at least 1.2, an r-value in the rolling direction of at least 1.3, an r-value in the direction of 45 degrees to the rolling direction of at least 0.9, and an r-value in the direction of a right angle to the rolling direction of at least 1.2.
Public/Granted literature
- US20080295924A1 Steel Sheet Excellent in Workability and Method for Producing the Same Public/Granted day:2008-12-04
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