You are now seeing this is a radial (diameter) magnetized ring magnet, one side of the inverted larger R angle, the magnetic ring outer diameter of 25mm, hole 6mm, thickness of 5mm, due to the Alnico less iron content, so it is not easy to rust and do not need any surface plating, is mainly used in higher temperature environments such as high-temperature ovens, automotive parts, instruments, motors, teaching and aerospace and military and other fields.
25mm diameter round perforated high temperature resistant alnico magnet
Alnico Other Frequently Asked Questions;
What elements are included in alnico?