Coated metal material capable of being welded which is excellent in corrosion resistance of worked zone
AssigneeNippon Steel Corporation
InventorsKensei Yuasa, Hiroshi Kanai, Masahiro Fuda
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Abstract
A weldable coated metal material excellent in the corrosion resistance of the formed part, comprising a metal sheet having formed on at least one surface thereof a coat layer containing electrically conducting particles, wherein the number distribution of the electrically conducting particle has a mode value in the particle size range from 0.05 to 1.0 μm and the total content of electrically conducting particles in the coat layer is from 15 to 60 vol %.
Claims29
A coated metal material excellent in electric conductivity, corrosion resistance and formability, comprising a metal sheet having formed on at least one surface thereof a coat layer containing electrically conducting particles, wherein a mode value in the number distribution for every each particle size of the electrically conducting particle is Mn, a mode value in the volume distribution for every each particle size of the electrically conducting particle is Mv and a thickness of the coat layer is H,
- H/10≦Mv≦10H
- 5Mn≦H≦200Mn
- 12≦Mv/Mn≦50
- and at the same time, the content of the electrically conducting particles in the coat layer is from 15 to 60 vol %.
Dependencies are inferred from the claim text.