New grain-oriented silicon steel with high permeability "ORIENTCORE HI-B"

A new grain-oriented silicon steel with a higher degree of grain orientation than usually obtainable by known conventional procedures was developed. The new material (HI-B) has made large improvements in core loss and magnetostriction characteristics by effects due to surface coating that are more remarkable with a higher degree of grain orientation. HI-B is 2-3 grade better than today's conventional products. Furthermore, there will be the possibility of improvement by 1-2 grade in the near future. HI-B has lower linear magnetostriction as compared to conventional material and is less sensitive to stress in spite of superior magnetic properties. Actual transformers made from HI-B materials have improved transformer characteristics such as core loss, exciting VA, and noise, reflecting the magnetic properties of materials.