STEEL SHEET HAVING HIGH Si CONTENT AND EXCELLENT IN SURFACE PROPERTY, AND METHOD FOR PRODUCTION THEREOF

PROBLEM TO BE SOLVED: To provide a steel sheet having high Si content, excellent in pickling property and having good surface property, which is obtained by suppressing the grain boundary oxidation of a steel sheet surface layer as much as possible, and to provide a useful method for producing such...

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Bibliographische Detailangaben
Hauptverfasser:	TAKEDA MIKAKO, NAKAKUBO SHOHEI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a steel sheet having high Si content, excellent in pickling property and having good surface property, which is obtained by suppressing the grain boundary oxidation of a steel sheet surface layer as much as possible, and to provide a useful method for producing such steel sheets having high Si content.SOLUTION: The production method includes, when hot-rolling the high-Si steel sheet in which the chemical component composition is properly controlled, winding the sheet at a temperature of ≥550°C but