Samarium Cobalt magnets come in two primary variants, as listed above, each with its own multiple subgrades. These magnets offer various energy products depending on the grade.

• Sm1Co5: Energy product ranges from 15 to 24 MGOe.
• Sm2Co17: Energy product ranges from 22 to MGOe.

Although not as powerful as NdFeB magnets, SmCo magnets excel in high-temperature environments, maintaining their magnetism at temperatures up to 350°C. This makes them ideal for demanding applications like motors and generators in the automotive, aerospace, and manufacturing industries. Additionally, their low iron content gives them superior resistance to corrosion and demagnetisation.

While these magnets are more expensive and brittle, their combination of thermal stability, resistance, and reliability makes them essential in applications where performance and durability are essential.