Product Information

　

１．Fe-Si-Al Alloy


Our company manufactures and markets magnetic head cores made with a Fe-Si-Al alloy, also known as Sendust. It has a high magnetic flux density, high permeability, resistant to wear and is widely used for heads of magnetic card readers/writers, banknote identifiers, and audio-visual equipment.


The properties of the alloys in our Sendust are as follows:

　

Properties of Fe-Si-Al alloy
　 Direct current
properties		 Alternating current
properties		 Hardness 　
Material Ｂ10（Ｇ） Ｈｃ μe(1ｋ) μe(100ｋ) Hv Features
ＳＹ １１５００ ０．０４ ４０００ ３００ ４４０ High magnetic flux density
Ｆ ７９００ ０．０２ １６０００ ７００ ４８０ High permeability
Ｖ ６５００ ０．０２ １３０００ ６８０ ４５０ High corrosion resistance
ＢＭ ９９００ ０．０２ １４０００ ６５０ ５１０ High wear resistance
ＮＢ １００００ ０．０２ １３０００ ６２０ ５００ High permeability
ＫＬ １１０００ ０．１１ １８００ ２３０ ４１０ High magnetic flux density and corrosion resistance

※#1. Measurement by induction method. The μrings used have 10 mm outside diameter and 6 mm inside diameter, with a thickness of 1.0 mm for DC measurements and 0.2 mm for AC measurements.
#2. The values shown in the table are central values, not guaranteed minimum values.
#3． Mearsureing load 10kg

　


Example of a Sendust magnetic head core



２．Other Products

Spacers for Sendust head cores (non-magnetic manganese steel)

Precision machining for grinding of ultra-hard materials such as ferrite, cemented carbide, ceramic, samarium cobalt (see below)





Examples of other machined items


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