Advanced-Grade Materials

Material Name	Description	Benefits	Applications
Amorphous Alloys	Metallic glass materials without a crystalline structure and with better electrical conductivity than conventional glass materials	High tensile strength. Excellent resistance to fracture and corrosion. Large amount of elastic deformation	For high frequency, low loss applications Inductors Energy storage inductors Saturable cores
Cobalt Iron	Fe/Co is a soft magnetic material with an extremely high magnetization saturation.	Best for applications requiring reduced size and weight	Aircraft generators, Electric motors, Magnetic bearings.
Microsil^TM	3% Si/Fe grain-oriented silicon iron alloy. It’s squareness ratio and gain is lower than for Square 50, while core losses are higher.	Least expensive of the Square Loop materials. Very high maximum flux. Ideal for high power, relatively low frequency applications.	For high performance applications Power Transformers, Saturable Reactors, Inverter Transformers, Magnetic Amplifiers (Power), Current Transformers, Output Transformers.
Nanocrystalline Alloys	Materials comprised of single- and multi-phase polycrystalline structures that have higher magnetic properties than conventional materials.	High strength and hardness. Reduced elastic modules. Large heat capacity and thermal expansion coefficient.	For high frequency applications, Current transformers, GFCI transformers, Inductors, Industrial controls, For wide range temperature applications.
Square 50	50% Ni/Fe/ grain-oriented alloy. It has B_m as well as cores losses so low it can be used in higher frequency applications than the silicon steels.	Highest squareness ratio possible (lowest saturated reactance). Very high gain. Ideal wherever an extremely square loop/close tolerance material is required.	Bi-stable switching devices, Inverter transformers, High performance power magnetic amplifiers Linear current transformers, Timing devices, Driver transformers.
Square 80	80% Ni/Fe/Mo. It is a low coercive force material with similar characteristics to Supermalloy^TM	Good squareness and high gain. Low core losses.	Low power, high efficiency inverter transformers, Low level, high frequency magnetic amplifiers & modulators, Pulse transformers.
Super Square 80	80% Ni/Fe/Mo. It has higher maximum flux density, gain, and squareness ratio than Square 80.	Provides remarkable core uniformity. Very slight increase in coercive force.	Wherever a high degree of thermal stability is required for certain magnetic characteristics like Bm/Br, H, δH.
Supermalloy^TM	80% Ni/Fe/Mo. This alloy is processed for exceptionally high initial permeability.	Designed for very low level or high value applications.	Very low-level Signal Transformers, Low level Magnetic Preamplifiers, High value Inductors without superimposed direct currents, Precision Current Transformers.
Supermendur^TM	49% Co/49% Fe/V. It is the highest flux density material available in tape wound cores.	Ideal wherever size and weight are a major design consideration.	Power Transformers, Power Magnetic Amplifiers, Inverters.
SuperPerm^TM 49	50% Ni/Fe/ Alloy. This material has characteristics that fall between Silicon Steel and 80% Ni/Fe/Mo.	Provides high initial permeability. Has high maximum flux.	Current Transformers, Proportioning Reactors, High quality/wide frequency Response Transformers, Medium power Magnetic Amplifiers.
SuperPerm^TM 80	80% Ni/Fe/Mo. Similar to Supermalloy^TM but processed for pulse and high frequency performance.	Designed for very low-level signal applications. Ideal for high frequency applications.	Very low-level signal transformers, Low level and high frequency magnetic preamplifiers, High value/high frequency inductors.