Samarium cobalt magnets experience a minimal change in their magnetic performance as temperature increases from ambient, far less than neodymium and ferrite (ceramic) magnets.
#Samarium cobalt series
No other rare earth magnetic material can match the performance or magnetic stability of samarium cobalt at high temperatures and the Sm2Co17 series will maintain their performance in temperatures up to 350 degrees Celsius, while the weaker Sm1Co15 grades have a lower maximum operating temperature of 250 degrees Celsius. Sm2Co175 (2:17 group of samarium cobalt magnets) Grade
Sm1Co5 (1:5 group of samarium cobalt magnets) Grade Samarium cobalt (1-5) is the older of the two types and typically has a maximum energy product of 15-24 MGOe and is almost obsolete having generally been superseded in most industrial applications by the more recently developed 2-17 type, which provides a maximum energy product of 22-32 MGOe and a higher maximum operating temperature.īelow, you can see a list of all the commercially available samarium cobalt magnet grades and their magnetic properties. the 1-5 range all have one samarium atom per five cobalt atoms. These main groups are given their titles based on their ratio or samarium atoms to cobalt atoms, e.g. There are 11 subgrades of samarium cobalt magnets grouped into two main types, known as samarium cobalt (1-5) and samarium cobalt (2-17). Samarium cobalt magnets are part of the rare earth family of magnets and have a maximum energy product range from 15 MGOe to 32 MGOe.
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