Nanocrystalline core has the pproperties of high saturation magnetization and permeability, low coercive force and core loss, good stabilities on temperature and time effect, excellent abilities of antiwearing and anti-rusty, and it shows the best property-value ratio among all of the soft magnetic materials. Features： High permeability High saturation Induction ,Low core loss The density and lamination coefficient of nano-crystalline is lower than that of Permalloy, under the condition of the same size and similar performance of the two. It is 1/4 lighter in weight, and 1/3 lower in the manufacturing cost. Good temperature stability:work for a long time at temperature of -55 ~ 130 ℃ The linear range of nano-crystalline alloy is wider than that of Permalloy. Applications for nanocrystalline cores closely resemble those for amorphous cores. The choice between an amorphous and nanocrystalline material for a given application depends on the specific environmental and industrial constraints. The high permeability, low power loss, and high saturation of nanocrystalline cores improve performance across: SMPS and UPS Inverters EMC filters Frequency converters AC and DC transformers Inductors Common mode and differential mode chokes Magnetic amplifiers Craftsmanship Nanocrystalline alloys are formed by adding a certain amount of glass forming agent to the molten metal, and rapidly quenching and casting using a narrow ceramic nozzle under high temperature melting conditions. Amorphous alloys have the similar characteristics of glass structure, which not only make them have excellent mechanical properties, physical properties and chemical properties, but more importantly, the new technology of producing amorphous alloys using this rapid quenching method is less than the cold-rolled silicon steel sheet process. 6 to 8 processes can save energy consumption by 60% to 80%, which is an energy-saving, time-saving and efficient metallurgical method. Moreover, the amorphous alloy has low coercivity and high magnetic permeability, and its core loss is significantly lower than that of oriented cold-rolled silicon steel sheet, and its no-load loss can be reduced by about 75%. Therefore, the use of amorphous alloys instead of silicon steel sheets to manufacture transformer cores is one of the main means to save energy and reduce consumption in today’s powergrid equipment.