HOT-ROLLED STEEL SHEET FOR NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING SAME

A hot rolled steel sheet is for a non oriented electrical steel sheet, wherein vickers hardness at the widthwise edge is 180 Hv or more, a value obtained by subtracting a vickers hardness at the widthwise center from the vickers hardness at the widthwise edge is 10 to 100 Hv, ductile brittle transit...

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Bibliographische Detailangaben
Hauptverfasser:	ARITA, Yoshihiro, ICHIE, Takeru, MURAKAMI, Fuminobu
Format:	Patent
Sprache:	eng ; fre ; ger
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 METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A hot rolled steel sheet is for a non oriented electrical steel sheet, wherein vickers hardness at the widthwise edge is 180 Hv or more, a value obtained by subtracting a vickers hardness at the widthwise center from the vickers hardness at the widthwise edge is 10 to 100 Hv, ductile brittle transition temperature at the widthwise edge is 0°C or less, a value obtained by subtracting the ductile brittle transition temperature at the widthwise edge from a ductile brittle transition temperature at the widthwise center is 10 to 100°C, and a value obtained by subtracting a sheet thickness at the widthwise edge from a sheet thickness at the widthwise center is 50 µm or less.