STEEL SHEET
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United States of America Patent
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Issued Date -
Aug 23, 2018
app pub date -
Aug 21, 2015
filing date -
Aug 21, 2015
priority date (Note) -
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Abstract
A steel sheet includes: a predetermined chemical composition; and a steel structure containing, in are a fraction, 2% or more of ferrite and bainite, in which an average dislocation density in the ferrite and an average dislocation density in the bainite are both h3×1012 m/m3 to 1×1014 m/m3, and an average grain diameter of the ferrite and the bainite is 5 μm or less.
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