Effects of silicon content, thickness and heat treatment on iron loss properties of high silicon electrical steel sheets

AbstractThe magnetic properties of high‐silicon steel sheets ranging in thickness from 0.35 to 0.03 mm and silicon content from 3 to 7.5 percent is investigated. The minimum iron losses are obtained with the silicon higher than 6.5 percent at the high‐frequency range over 30 kHz. The sheet thickness dependency index m is estimated. The heat treatment effects to soft magnetic properties also are studied.