HIGH-STRENGTH HOT-ROLLED PLATED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Jul 14, 2016
app pub date -
Jan 29, 2014
filing date -
Aug 30, 2013
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Abstract
Disclosed is a high-strength hot-rolled plated steel sheet capable of suppressing material deterioration at the time of plating, while having high strength, and a method for manufacturing the same. The high-strength hot-rolled plated steel sheet may include: a hot-rolled steel sheet base material composed of 0.03-0.1 wt % of C, below 0.06 wt % of Si, 0.7-2.0 wt % of Mn, below 0.02 wt % of P, below 0.01 wt % of S, 0.1-0.5 wt % of one or more precipitate forming elements, 0.3-1.0 wt % of Al, 0.1-0.5 wt % of Mo, Fe, and unavoidable impurities; and a plated layer formed on the surface of the hot-rolled steel sheet base material.
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