Samarium Cobalt is a high energy material, much like Neodymium, that can resist temperatures as high as 350°C and has for many decades been used in motor segments and other high temperature applications that call for high energy magnets.
See our magnets facts page for more information about Samarium Cobalt (Smco) and the other magnet materials
If you don't find the size you are looking for, don't hesitate to contact us. We can make almost any size and shape after your demands. In fact, most of our standard-stock is once up on a time a customer size request.