RatnerPrestia
Cold rolled steel sheet
In order to obtain a cold rolled steel sheet having excellent press formability, a cold rolled steel sheet has, on a surface thereof, an organic-inorganic composite film containing: an organic resin; and a crystalline layered material. The organic-inorganic composite film has an average film thickness of 0.10 to 2.0 μm and contains 0.5 part or more by weight of the crystalline layered material as a solid with respect to 100 parts by weight of a solid of the organic resin. The crystalline layered material preferably is, for example, a layered double hydroxide represented by [M2+1-xM3+x(OH)2][An−]x/n.zH2O, where: M2+ is one or more of Mg2+, Ca2+, Fe2+, Ni2+, and Zn2+; M3+ is one or more of Al3+, Fe3+, and Cr3+; and An− is one or more of OH−, CO32−, Cl−, and (SO4)2−.
JFE Steel corporation
C C B B B C C C C C C Y C B C C C C C C C C C C C C C C C C C C C C C C C C C C C
C10N C10M B05D B32B B32B C08G C10M C10M C08G C10M C10M Y10T C10M B05D C10M C10N C10N C10M C10M C10N C09D C10M C10M C09D C10M C10M C10N C10M C10N C10N C10N C10N C10M C10M C10N C10N C10N C10M C10N C10M C10M
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Shinji Katsuya Tatsuya Takayoshi
Ootsuka Hoshino Miyoshi Yano