Kawasaki Steel Corporation

Takako Yamashita

Osamu Kondo

Shigeaki Takajo

Akihiro Matsuzaki

Electromagnetic steel sheets which contain Cr in an amount of from about 1.5 to 20% by weight and Si in an amount of from about 2.5 to 10% by weight, while having a total amount of C and N of not larger than about 100 ppm by weight, and which has a specific resistivity of not smaller than about 60 &mgr;&OHgr;&middot;cm.

Electromagnetic steel sheet having excellent high-frequency magnetic properties

A magnetic steel sheet used for an alternating current core, and having excellent magnetic properties in both a rolling direction, and the direction perpendicular thereto, and a method of producing the magnetic steel sheet. The magnetic steel sheet in a recrystallized cold-rolled condition is characterized in that the intensity ratio of &lcub;100&rcub;<001> orientation to random orientation is 2.0 or more, the intensity ratio of &lcub;011&rcub;<100> orientation to random orientation thereof is 2.0 to 10.0, and the intensity ratio of <001>//ND orientation to random orientation is preferably 2.0 or less. The method of producing a magnetic steel sheet includes hot-rolling a silicon steel slab so that the intensity ratio of (015)&lsqb;100&rsqb; orientation to random orientation of the recrystallized hot-rolled sheet is 3.0 or more.

Magnetic steel sheet having excellent magnetic properties and method of producing the same

Fe&mdash;Cr&mdash;Si steel sheet having an excellent corrosion resistance and high toughness and method for manufacturing the same; the amount of Cr is about 10-30 wt %, the total amount of C and N is not more than about 100 ppm and the remainder consists of Fe and incidental impurities; when a cast piece of this steel is subjected to hot rolling to roll into a thickness of not more than about 3 mm, the hot rolled sheet can be subjected to cold rolling or to warm rolling without annealing.

Fe-Cr-Si steel sheets having excellent corrosion resistance and method for manufacturing the same

Electromagnetic steel sheets which contain Cr in an amount of from about 1.5 to 20% by weight and Si in an amount of from about 2.5 to 10% by weight, while having a total amount of C and N of not larger than about 100 ppm by weight, and which has a specific resistivity of not smaller than about 60 .mu..OMEGA..multidot.cm.

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Chiba, Japan

Takako Yamashita