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Title:
HIGH STRENGTH ALLOYED GALVANIZED STEEL SHEET FOR DEEP DRAWING EXCELLENT IN SECONDARY WORKING EMBRITTLEMENT RESISTANCE
Document Type and Number:
Japanese Patent JP3295900
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a high strength alloyed galvanized steel sheet easily producible without requiring a special cooling stage in a high strength steel sheet strangthened essentially by P and having excellent secondary working embrittlement resistance and press workability.
SOLUTION: This high strength galvannealed steel sheet has a compsn. contg., by mass, ≤0.0050% C, ≤0.50% Si, 0.05 to 2.0% Mn, 0.03 to 0.15% P, 0.01 to 0.03% S, 0.01 to 0.1% A, 0.005 to 0.02% N and 0.02 to 0.2% Ti or furthermore contg. one or two kinds of 0.005 to 0.1% Nb and 0.0003 to 0.003% B, and the balance Fe with inevitable impurities.


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Inventors:
Tomohiro Kase
Ichiro Tsukaya
Application Number:
JP19283396A
Publication Date:
June 24, 2002
Filing Date:
July 02, 1996
Export Citation:
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Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C23C2/06; C22C38/00; C22C38/14; C23C2/28; (IPC1-7): C22C38/00; C22C38/14; C23C2/06; C23C2/28
Domestic Patent References:
JP5195148A
Attorney, Agent or Firm:
本田 ▲龍▼雄



 
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