Nippon Steel Corporation

Hiroki Matsubara

Tooru Akashi

Kazuki Shiokawa

Takayuki Otsuka

Yuki Takeuchi

A coil skid on which a hot-rolled coilobtained by coiling a hot-rolled steel sheet is placed includes: at least two or more layers of a metal plateand at least two or more layers of a heat insulating materialeach stacked alternately, in which the metal plateis in contact with the hot-rolled coil. The uneven cooling of an outer peripheral portion of the hot-rolled coil caused by the coil skid is prevented while ensuring the strength of the coil skid, to thereby inhibit the uneven hardness in the longitudinal direction of the hot-rolled coil resulting from this uneven cooling.

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Tokyo, Japan

Hiroki Matsubara