38.5x27.5-15x3 mm SmCo Arc Magnet

Triangular Type Samarium Cobalt Magnet (Trapezoid Magnet)

The samarium-cobalt (SmCo) magnet, a type of rare earth magnet, is a powerful permanent magnet composed of two basic elements. The elements samarium and cobalt provide a very strong structure for this permanent magnet.

SmCo samarium cobalt magnets are very similar in strength to neodymium magnets, but can withstand higher temperatures.

Properties of Samarium Cobalt Magnets:

• Resistance to Demagnetization: Samarium-cobalt magnets are highly resistant to demagnetization.
  
• High Temperature Resistance: Maximum operating temperatures range from 250 °C (523 K) to 550 °C (823 K); Curie temperatures range from 700 °C (973 K) to 800 °C (1,070 K).
• Cost: Expensive due to the elements they contain.
• Corrosion and Oxidation Resistance: Samarium-cobalt magnets have a strong resistance to corrosion and oxidation and usually do not need to be coated.
• Uses: They are widely used in high temperature and harsh working conditions.
• Fragility: They are brittle and prone to cracking and chipping.
• Energy Product: Samarium-cobalt magnets have maximum energy products (BH max) ranging from 14 megagauss-oersted (MG-Oe) to 33 MG-Oe, which means approximately 112 kJ/m³ to 264 kJ/m³. Their theoretical limit is 34 MG-Oe, about 272 kJ/m³.

Samarium-cobalt magnets are an ideal choice for applications requiring high performance and durability.