UNIDIRECTIONALLY GRAIN ORIENTED ELECTROMAGNETIC STEEL SHEET HAVING EXCELLENT IRON LOSS PROPERTIES

摘要

Grain-oriented electrical steel sheet superior in core loss characteristic containing Si: 0.8 to 7 mass% and having a secondary recrystallized texture with a {110}<001> orientation as the main orientation, characterized in that average deviation angles ±, ², and ³ from the {110}<001> ideal orientation of the secondary recrystallized texture satisfy (± 2 +² 2 ) 1/2 ‰¤³, where ±: average deviation angle from {110}<001> ideal orientation around rolling surface normal direction (ND) of secondary recrystallized texture, ²: average deviation angle from {110}<001> ideal orientation around traverse direction (TD) of secondary recrystallized texture, and ³: average deviation angle from {110}<001> ideal orientation around rolling direction (RD) of secondary recrystallized texture.