Samarium Cobalt Magnets Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specific values within that range.
Samarium Cobalt magnets are one of the magnets in the Rare Earth family. Automotive, marine and medical equipment often make use of Samarium Cobalt magnets as they have excellent resistance to corrosion. They are a highly stable magnet, offering good resistance to demagnetisation as well as performing well in a range of temperatures.
This table outlines the key performance measures of Samarium Cobalt magnets. This is a general overview and ranges are indicative for the whole product category. Individual product pages are the best place to find specific and accurate information about a particular product.
Although Neodymium magnets are by far the class favourite when it comes to magnetic power, Samarium Cobalt magnets place well in terms of performance in high temperatures. They are one of the favoured types of magnets, along with Alnico magnets, for engineers working on the design of aircraft and spacecraft.
Common uses for Samarium Cobalt magnets include a variety of applications which would lead to demagnetisation in other types of magnets. These include temperature fluctuations as would be experienced in aircraft and spacecraft. Precision is also a crucial requirement in these types of applications and disc magnets or cylinder magnets are preferred as their magnetic field is more targeted.
Samarium Cobalt magnets are brittle in nature and should be handled with care. Like other Rare Earth magnets, such as Neodymium magnets, they are prone to shattering and chipping if allowed to pull together with force. For this reason Samarium Cobalt magnets are often incorporated into products, equipment or furniture rather than being used as a stand alone magnet. Although their comparative lack of strength can be seen as a negative in some instances, it can also be a benefit.
When magnets are used to join two component parts such as rolling cabinets, it is important to decide what strength magnet is right for the components being joined together. A Neodymium will provide a small and powerful magnetic field however if the magnet is too large it will be difficult to pry the components apart. Samarium Cobalt magnets allow for a broader magnetic field due to their increased size, this provides a more user friendly experience. Disassembling and reassembling is easier when the alignment is not required to be as precise and the hold is secure but not excessive.