View source for 20250163553. Galvanized Steel Shee (NIPPON STEEL)

= GALVANIZED STEEL SHEET =

'''Abstract''':
this galvanized steel sheet includes: a steel sheet; and a galvanized layer provided on the steel sheet, wherein a microstructure at a � depth of a sheet thickness from a surface of the steel sheet includes, in terms of area %, ferrite: 2.0 to 25.0%, bainite: 10.0% or less, tempered martensite: more than 60.0% and 93.0% or less, and retained austenite: 5.0% or more, and an area ratio of the austenite, which is in contact with a 30� grain boundary, which has an mn concentration of 1.2 times or more an average mn concentration, and which has a grain size of 0.3 to 2.0 �m, is 3.0% or more.

'''Inventor(s)''': [[:Category:Shohei YABU of Tokyo  JP|Shohei YABU]]

'''CPC Classification''': [[:Category:CPC_C22C38/06|C22C38/06]] (ALLOYS  (flints ; treatment of alloys , ))


[[Category:Patent Applications]]
[[Category:NIPPON STEEL CORPORATION]]
[[Category:CPC_C22C38/06]]
[[Category:Shohei YABU of Tokyo  JP]]

[https://wikipatents.org/index.php?search=20250163553+rejection&title=Special%3ASearch&wprov=acrw1_-1 Search for rejections for patent application number 20250163553]


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