Locke Lord LLP
High-strength steel sheet and manufacturing method therefor
A high-strength steel sheet according to the present invention comprises, by weight, 10.0-15.0% Mn, 6.0-9.0% Al, 0.5-2.0% Cr, 0.8-1.6% C, and 0.001-0.01% N, and further comprises, by weight, 0.02-0.1% V, 0.005-0.015% Nb, and 0.005-0.02% Mo, or further comprises 0.1-0.5 wt % TiAl particles. The high-strength steel sheet has a mixed structure comprising austenite and a fine k-carbide having a mean particle diameter of 10-500 nm.
HYUNDAI STEEL COMPANY
C C C C C C C C C C C C C C C C C C C C C
C22C C22C C22C C21D C22C C21D C22C C21D C21D C21D C21D C21D C22C C21D C22C C21D C21D C21D C22C C21D C22C
inventional inventional inventional additional inventional inventional inventional additional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional
Seong-Ju Hyo Dong Jun Ho
Kim Shin Chung