ORIENTCORE･HI-B･LS is an electrical steel developed from the mother product ORIENTCORE･HI-B by irradiating the surface with a laser beam so as to refine the magnetic domain.

It is most suitable for the cores in large transformers, where it is used without stress-relief annealing that negates the effect of laser beam irradiation.

ORIENTCORE･HI-B･PM is the product which can achieve low iron loss by magnetic domain-refining method. i.e. surface treatment of ORIENTCORE･HI-B.

This product can withstand stress-relief annealing(up to approximately 800˚C in a non-oxidizing atmosphere), therefore ORIENTCORE･HI-B･PM can be used widely not only for electric power transformer but also for various kinds of transformers.