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• Magnetic Permeability Of Cobalt
• Cobalt Magnetic Material
• Cobalt Magnetic Susceptibility
• Cobalt Magnetic Properties
• Cobalt Magnetic Moment

Neodymium magnets dominated the market of rare earth permanent magnets since its inception and then Samarium Cobalt magnets are marginalized seriously due to magnetic performance, complex processing technologies, and costs. SOFT MAGNETIC COBALT-IRON ALLOYS VACOFLUX ® AND VACODUR 7 MAGNETIC PROPERTIES Before delivery to the customer, every semi-finished product is tested with respect to its magnetic properties. These tests are based on ring, strip or rod samples. The sample undergoes a heat treatment for optimising the magnetic properties.

Samarium Cobalt (SmCo) magnets, of the Rare Earth class, have been available since the early 1970's. They are made from the alloys samarium and cobalt. These magnets possess very high magnetic properties and excellent thermal stability, while remaining resistant to corrosion. These characteristics make SmCo magnets ideal for applications requiring a resistance to wide-ranging temperatures and environments.

Samarium Cobalt magnets are manufactured by sintering or compression bonding. They are anisotropic and can only be magnetized in the direction of orientation. The material is easily magnetized in one direction, but is able to prevent magnetic pull in any other direction.

We can provide custom shapes and sizes of samarium cobalt magnets by working with you to create your unique specifications. Some of the different shapes include:

• Arc
• Bar
• Rod
• Disc
• Horseshoe
• Channel
• Block
• Ring
• Sphere
• Cylinders
• Plugs
• Cube

Applications of Samarium-Cobalt Magnets

Samarium-Cobalt magnets are ideal for corrosive environments with high temperatures. The following are some of the common industries and applications for Samarium-Cobalt magnets:

Common Industries That Use Samarium-Cobalt Magnets

• Aerospace
• Automotive
• Food Processing
• Marine
• Medical
• Military
• Manufacturing

Common Applications for Samarium-Cobalt Magnets

• Generators
• Motors
• Couplings
• Magnetic Separators
• Sensors
• Transducers
• Medical Devices
• Cryogenic Applications

Contact us or request a quote to find out how we can help you.

The table below offers some guidelines for selecting a grade that will best suit your application.

Sintered Samarium Cobalt Magnets Grades & Properties

Br: Residual Induction
Gs: Gauss
Hc: Coercive Force
Oe: Oersted
˚C: Degree Celcius
MGOe: Mega Gauss Oersted

Standard Tolerances (inches);
All shapes and sizes (±0.005)

Magnetism Direction Options

• Square and rectangular Sintered Samarium Cobalt magnets can be magnetized with two poles ('N' & 'S') thru the length, width, thickness and with multiple poles.
• Round Sintered Samarium Cobalt magnet can be magnetized with two poles ('N' & 'S') the thickness, diametrically and with multiple poles.
• Ring Sintered Samarium Cobalt magnet can be magnetized with two poles ('N' & 'S') thru the thickness, diametrically and with multi poles. Contact us for magnetism direction of irregular shapes.

Caution!

Extreme caution must be taken when working with rare earth magnets. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets, or a magnet and a metal surface, even causing broken bones. Magnets allowed to get too close to each other can strike one another with force to chip and shatter the brittle material, and the flying chips can cause injuries.

Explore Our Samarium Cobalt Capabilities

• Samarium Cobalt rare earth magnets are often used in high temperature applications needing high magnetic performance and where magnetic stability over a wide range of temperatures is important.
• Dura can help optimize performance and cost with SmCo magnets in grades from 16 to 32 MGOe and temperatures up to 350°C/662°F.
• Stock Samarium Cobalt magnets also available to reduce development and production lead times.

Sourcing Stock Samarium Cobalt Magnets?

Samarium Cobalt rings, cylinders, and blocks…

Made to
Your Print

Need Samarium Cobalt Magnets manufactured to your specs?

Designed for Your Application

We custom engineer
Samarium Cobalt Magnets…

Available Grades of Samarium Cobalt Magnets:

Many grades of Samarium Cobalt exist to support a variety of industrial and commercial applications. The range of Samarium Cobalt Magnet grades is typically 16 to 32 MGOe. These ranges allow for balancing cost, magnetic performance, and operational temperature resistance.
Explore available Samarium Cobalt Magnet grades available from Dura Magnetics…

Magnetic Permeability Of Cobalt

Corrosion Resistance:

SmCo Rare Earth magnets are very resistant to corrosion and do not normally require any surface treatment.
Learn more about SmCo Magnet Corrosion Resistance…

Cobalt Magnetic Material

Temperature Effects:

Samarium Cobalt magnets can operate at temperatures up to 500°F (260°C), making these rare earth magnets ideal for high heat applications.
Learn more about Samarium Cobalt Magnet operating temperatures above ambient temperatures…

Magnetization Options:

Although most commercial magnets are anistropic, which means they have a preferred direction of magnetization, various pole configurations can be achieved without conflicting with a Samarium Cobalt Magnet’s orientation.
Learn more about magnetization options for Samarium Cobalt Magnets…

Compliance and Intellectual Property Considerations:

Samarium Cobalt magnets manufactured by Dura Magnetics are compliant with Intellectual Property Rights, Environmental Restrictions, and Conflict Mineral usage.

• DFARS Compliant
• RoHS, RoHS II, RoHS III and REACH
• Dodd Frank Wall Street Reform Act (Section 1502)

Cobalt Magnetic Susceptibility

Handling and Storage of Samarium Cobalt Magnets:

Cobalt Magnetic Properties

SmCo Magnets are very strong and brittle, requiring appropriate handling and packing to ensure safety and prevent damage.
Learn more about safe handling and storage of Samarium Cobalt Magnets…

Samarium Cobalt Magnet Manufacturing Methods:

Cobalt Magnetic Moment

Samarium Cobalt Magnets are typically manufactured by a powdered metallurgical process utilizing rigid steel or rubber molds.
Learn more about Samarium Magnet Manufacturing methods…