Title:
HOT-DIP GALVANIZED STEEL SHEET
Document Type and Number:
Japanese Patent JP2023090240
Kind Code:
A
Abstract:
To provide a hot-dip galvanized steel sheet excellent in corrosion resistance and appearance quality.SOLUTION: A hot-dip galvanized steel sheet (1) includes a base material steel sheet (10) and a hot-dip galvanized layer (20) formed on the base material steel sheet (10). The hot-dip galvanized layer (20) has a chemical composition described in the specification. In a rectangular observation field area (50) including the surface (S) of the hot-dip galvanized layer (20) and having a L direction length of 120 μm and a H direction length of 96 μm, the length SL of the surface (S) and the shortest distance SD between one end part (P1) of the surface (S) and the other end part (P2) satisfy a formula (1), and in a cross section including the L direction and the H direction, the number of recessed parts formed on the surface (S) of the hot-dip galvanized layer (20) and satisfying formulae (2)-(4) described in the specification is 1.0 piece or more per 10 cm in the L direction, SL/SD≤α (1).SELECTED DRAWING: Figure 3
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Inventors:
KONISHI TSUYOSHI
FUKUDA YUTO
NAMIKI NATSUKI
KINDAICHI YUSUKE
MAJIMA YASUHIRO
FUKUDA YUTO
NAMIKI NATSUKI
KINDAICHI YUSUKE
MAJIMA YASUHIRO
Application Number:
JP2021205108A
Publication Date:
June 29, 2023
Filing Date:
December 17, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
C23C2/06; C22C18/04; C22C21/10; C23C2/20
Attorney, Agent or Firm:
Ascend Patent Attorneys Corporation
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