Hot-rolled steel sheet and method for producing same
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United States of America Patent
Stats
-
Apr 25, 2017
Issued Date -
N/A
app pub date -
May 24, 2012
filing date -
May 25, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hot-rolled steel sheet satisfies that average pole density of orientation group of {100}<011> to {223}<110> is 1.0 to 5.0 and pole density of crystal orientation {332}<113> is 1.0 to 4.0. Moreover, the hot-rolled steel sheet includes, as a metallographic structure, by area %, ferrite and bainite of 30% to 99% in total and martensite of 1% to 70%. Moreover, the hot-rolled steel sheet satisfies following Expressions 1 and 2 when area fraction of the martensite is defined as fM in unit of area %, average size of the martensite is defined as dia in unit of μm, average distance between the martensite is defined as dis in unit of μm, and tensile strength of the steel sheet is defined as TS in unit of MPa.
First Claim
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Family
International Classification(s)
- 2012 Application Filing Year
- C21D Class
- 463 Applications Filed
- 402 Patents Issued To-Date
- 86.83 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- C21D Class
- 44.83 % this patent is cited more than
- 8 Age
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