General Introduction

SmCo magnet, a type of rare earth magnet, is a strong permanent magnet made of an alloy of samarium and cobalt.
Two "series" of SmCo are available, namely Series 1:5 and Series 2:17 (SmCo₅, Sm₂Co₁₇), of Sintered and Bonded type.

Features

SmCo Magnets are generally ranked similarly in strength to neodymium magnets, but have higher temperature ratings and higher coercivity, extremely resistant to demagnetization.
SmCo is Good temperature stability (maximum use temperatures between 250 °C (523 K) and 550 °C (823 K); Curie temperatures from 700 °C (973 K) to 800 °C (1,070 K) SmCo is brittle, and prone to cracking and chipping.

Typical Grades

Sintered SmCo: SmCo 16-30

Property

Some important properties used to compare permanent magnets are:

• Remanence (Br), measure the strength of the magnetic field;
• Energy product (BHmax), the density of magnetic energy, which relates to the magnetic flux output per unit volume. Higher values indicate stronger magnets;
• Curie temperature (Tc), the temperature at which the material loses its magnetism.

You could check the Property Table in the below linkage for reference:

• Sintered SmCo: Property Table

Shape

SmCo magnets could be made into various shapes:

• Disk/Cylinder, Bar/Block, Ring, Arc, etc.

Custom design is available to us for client`s specific needs

Application

Some examples of SmCo applications:

• High-end electric motors;
• Turbomachinery;
• Applications in which performance requiring to be consistent with temperature change or at cryogenic and very hot temperature.

Production

Sintered SmCo:

Raw Materials → Blending → Melting → Milling → Molding → Sintering → Magnetic Inspection → Machining → Surface Treatment → General Inspecting → Packing & Delivery