Oriented electrical steel sheet

The present invention provides excellent can effectively reduce the magnetic domain refining treatment through the noise reducing iron loss oriented electrical steel sheet produced during lamination used in the transformer core, the noise characteristics of oriented electrical steel sheet. The oriented electrical steel sheet for the steel sheet oriented electrical steel sheet provided with forsterite film sides and a tension coating embodiment of the linear thermal strain introduced into the magnetic domain refining treatment of grain-oriented electrical steel sheet rolling radius of curvature in accordance with the amount of braking direction is introduced to the surface of the curved surface of the inner strain in terms of less than 600mm and 6000mm, and the introduction amount of the bending direction perpendicular to the rolling direction according to the strain curvature radius of the curved surface of the inner terms of 2000mm or more.