Title:
CORROSION RESISTANT STEEL SHEET HAVING EXCELLENT COATING CORROSION RESISTANCE AND PITTING CORROSION RESISTANCE
Document Type and Number:
Japanese Patent JP3840409
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a coated steel sheet which has excellent pitting corrosion resistance and coating corrosion resistance while having properties generally required for a coated steel sheet such as weldability and workability.
SOLUTION: The coated steel sheet is obtained by coating a steel sheet with a zinc-rich coating. The coated steel sheet contains, as components in steel, 0.001 to 0.10% C, ≤0.5% (inclusive of 0%) Si, 0.05 to 2.0% Mn, 0.03%<Ti+Zr<0.4% (inclusive of the case where the content of Zr is 0%), 0.03 to 0.5% Cu, 0.03 to 0.5% Ni, 0.020 to 0.1% P, ≤0.01% (inclusive of 0%) S, ≤0.02% (inclusive of 0%) Ca, and 0.003 to 0.20% Al.
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Inventors:
Fumio Yuse
Takenori Nakayama
Takayuki Yamamoto
Hiroo Shige
Takenori Nakayama
Takayuki Yamamoto
Hiroo Shige
Application Number:
JP2001372302A
Publication Date:
November 01, 2006
Filing Date:
December 06, 2001
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B05D7/14; C22C38/00; B32B15/08; C22C38/16; (IPC1-7): C22C38/00; B32B15/08; C22C38/16; //B05D7/14
Domestic Patent References:
| JP11293346A | ||||
| JP60240774A | ||||
| JP10137683A |
Attorney, Agent or Firm:
Kyuichi Ueki
Etsushi Kotani
Etsushi Kotani