Samarium cobalt magnets

Samarium cobalt (Sm-Co) magnets are the best choice for high temperatures applications. They have an operating temperature of up to 350 ⁰C. This magnet grade has excellent stable magnetic properties.

Sm-Co magnets are used in medical implants and prostheses, sensors, bearings, motors and instruments.

  • Magnetically very stable over a wide temperature range
  • Highly resistant to corrosion
  • Mechanically very strong
  • Highly resistant to demagnetization
  • Buy magnets online

What are the applications of this second strongest magnet type?

Sm-Co magnets can be found, for example, in medical implants and prostheses, sensors, bearings, motors and instruments. Samarium cobalt is the strongest magnet grade after neodymium.


Why do we use samarium cobalt for technically high-quality products?


High thermal stability and high magnetic force are factors that contribute to technically high-quality products. Sustainability in relation to price is crucial here.


For high-quality, high-tech products, choose samarium cobalt magnets for these four specific features:

  1. high Curie temperature
  2. excellent magnetic stability over a wide temperature range
  3. high magnetic force up to 30 MGOe
  4. excellent corrosion and demagnetization resistance

Because there are many possibilities with SmCo magnets, our team is happy to help you make the right choice.


Send us your request for samarium cobalt magnets:

Samarium Cobalt magnets SmCo | Goudsmit Magnetics

What should you take into account when using this magnet type?

Samarium cobalt magnets are very brittle. This is an important property. Therefore, application of this magnet grade deserves extra attention to avoid costly design errors.


Using a coating or applying cobalt samarium in a magnet assembly improves magnet performance.

  • Prevents splintering.
  • Ensures better adhesion when soldering.
  • Makes the magnet easier to clean.
  • Provides better hygiene in medical applications.


Another solution is to use a samarium cobalt pot magnet. More information on this can be found on the pot magnets page.


The geometry of the magnet ultimately determines the magnetic properties.

SmCo pot magnets samarium cobalt | Goudsmit Magnetics

How do we ensure manufacturability, reliable quality and stable supply?

The magnetic properties of each magnetic alloy are different. Many manufacturers deliver a quality that does not meet the requirements you set.

Over half a century, we have built up a strong network of controlled and certified manufacturers. In addition, we are IATF and AS9120 certified. We assess in advance whether your magnet can be made and whether the desired properties are measurable.


In addition to manufacturability, reliability and quality, it is also important that you receive a magnet with a stable price and delivery time.


Magnets that:

  • meet the right magnetic specifications
  • are high-quality and reliable
  • are certified and inspected


As there is a lot of variation in ferrous magnets, our team is happy to help you make the right choice. Send us your inquiry about samarium cobalt magnets:


Goudsmit Magnetics, because a magnet is always part of a bigger picture!

Certifications-&-Memberships | Goudsmit Magnetics

What type of samarium-cobalt should you choose for your application?

Samarium-cobalt magnets are anti-isotropic.
We distinguish between two types of samarium cobalt magnets: SmCo 1:5 and SMCO 2:17.


The composition of these types of magnets is different and therefore so is the maximum operating temperature, energy density and price. In magnets with a SMCO 2:17 composition, these values are higher.


View the various qualities and properties of permanent samarium-cobalt magnets.


Here you will find an explanation of the product key coding of permanent magnets.


Want to know what this means for your product?


Our magnet experts will be happy to help you. Contact us by e-mail: or call +31 (0)40 221 3283 for more information on samarium-cobalt magnets.

Samarium Cobalt magnets SmCo | Goudsmit Magnetics


Product key:
Article number:


Something went wrong: the product could not be added to your shopping cart. Please try it again!

Price on request

Price on request

* We can deliver this article within {0}. We will keep you informed of the exact delivery date.
Minimum order quantity Price per unit Discount percentage