Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Steel sheet for hot press and manufacturing method thereof
Disclosed is a steel sheet for hot press forming, which includes: a base steel sheet; and a plating layer disposed on the base steel sheet and including a diffusion layer and a surface layer that are sequentially laminated, wherein the diffusion layer includes an Fe—Al alloy layer and an Fe—Al intermetallic compound layer that are sequentially disposed on the base steel sheet and each include silicon, and an area fraction of the Fe—Al intermetallic compound layer with respect to the diffusion layer is 84.5% to 98.0%.
Hyundai Steel Company
C C C C B C C C C C C C C C C C C C C C Y C C C C C C
C23C C22C C22C C23C B32B C23C C23C C22C C23C C22C C22C C22C C23C C23C C23C C22C C22C C22C C22C C23C Y10T C23C C22C C23C C22C C22C C22C
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Hye Rim Sung Min
Choi Kim