Ferrite magnets are produced from Strontium or Barium, and are a low cost
alternative to other magnetic materials such as AlNiCO and other alloys.
However, they offer lower energy levels (Br) and are brittle in nature. They
can operate up at relatively high temperatures, and offer fairly good
resistance to corrosion.
We have an assortment of stock ferrites in various shapes and sizes in
ceramic 1,5 and 8 grades.