... two types of ferrite magnets, barium ferrite and strontiunm ferrite.Due to their low cost and simply manufacturing process, Ferrite magnets enjoy a ... crafts, and are the most widely used permanent magnets today. Ferrite magnets are available in varieties of shapes and sizes, ... u-shapes, cylinders block etc. Nice temperature stability, ferrite magnets can be used between -40oC and +200oC.The finished ...