Title:
HIGH STRENGTH PLATED STEEL SHEET
Document Type and Number:
Japanese Patent JP3241075
Kind Code:
B2
Abstract:
PURPOSE: To provide a high strength plated steel sheet excellent in fatigue characteristics in a weld heat-affected zone by applying plating having sacrificial corrosive action to the surface of a steel sheet having a composition consisting of respectively specified percentages of C, Si, Mn, P, S, Al, N, Nb and Mo and the balance Fe.
CONSTITUTION: Plating having sacrificial corrosive action is applied to the surface of a steel sheet having a composition consisting of, by weight ratio, 0.005-0.20% C, 0.005% Si, 0.1-2.5% Mn, 0.001-0.10% P, 0.001-0.01% S, 0.005-0.1% Al, 0.0005-0.01% Ni, 0.01-0.05% Nb, 0.1-0.50% Mo and the balance Fe with inevitable impurities. Plating is carried out by using zinc. The strain of ≤1.0% by elongation percentage is applied. By this method, the high strength plated steel sheet having corrosion resistance and reduced in softening in a weld heat- affected zone can be provided.
Inventors:
Kazumasa Yamazaki
Application Number:
JP316492A
Publication Date:
December 25, 2001
Filing Date:
January 10, 1992
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C22C38/00; C21D9/46; C22C38/12; C23C2/04; C23C2/06; C23C2/26; C25D3/22; (IPC1-7): C22C38/00; C21D9/46; C22C38/12; C23C2/26; C25D3/22
Domestic Patent References:
| JP1294848A | ||||
| JP4173946A |
Attorney, Agent or Firm:
Tachio Chanogi (1 outside)
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