Annealing by the User
Two types of annealing may be performed by users of nonoriented electrical steels. If fully processed grades are used, annealing will consist of a stress-relief anneal. This treatment is required only to eliminate the impair- ment of magnetic properties caused by stresses induced during punching or assembly. If semi-processed mate- rial is used, a different type of anneal is required to develop the magnetic properties fully.