Samarium Cobalt Block Magnets

Product Information 

Samarium Cobalt (SmCo) block & bar magnets are strong permanent magnets that offer excellent magnetic stability in high or very low temperature environments. Part of the rare earth magnet family, SmCo block magnets have superior magnetic properties compared to other permanent magnet materials because of their high-resistance to corrosion or demagnetization. From medical devices to high-performance motors and sensor systems, samarium cobalt magnets are ideal for technical applications where magnetic stability is critical in extreme temperatures and space is a limiting factor.

Samarium Cobalt Block Synonyms

Cobalt-samarium, SmCo, Samarium-cobalt alloy 18, Samarium-cobalt alloy 24, Samarium-cobalt alloy 30, Sm2Co17, SmCo5, 12052-78-7

Samarium Cobalt Block Specification

Standard Dimensional Tolerances for SmCo Bar & Block Magnets

Here are the standard tolerances for Rare Earth Magnets (SmCo & NdFeB) based on the following dimensions:

+/- 0.004” on length & width dimensions ranging from 0.040” to 1.000”.

+/- 0.008” on length & width dimensions ranging from 1.001” to 2.000”.

+/- 0.012” on length & width dimensions ranging from 2.001” to 3.000”.

*Tolerance on thickness is +/-0.004” regardless of size.

Per your request or drawing

We can customized as required

Properties（Theoretical）

SmCo Magnet Approximate Pull Info

Coatings, rust, rough surfaces, and certain environmental conditions can significantly reduce the pull force. Please be sure to test the actual pull in your actual application. For critical applications, it is suggested that the pull be de-rated by a factor of 2 or more, depending on the severity of a potential failure.

Safety Precautions for Samarium Cobalt Magnets

SmCo magnets are hard, very brittle and high in magnetic strength. They can also snap together with great force, and chip or break if dropped. Therefore, they require careful handling and packing in order to prevent injuries or damages to the magnets.

Material Information

· An alloy compose of SmCo5/ Sm2Co17 produce by powder metallurgical method

· Extremely hard & brittle

· High demagnetization resistance

· Excellent anti-corrosion properties

· More expensive than NdFeB magnets because of limited raw material supply

· Outstanding thermal stability

Applications of Samarium Cobalt Block magnets 

Samarium Cobalt (SmCo) magnets have excellent temperature stability while maintaining their magnetic properties in extreme temperature conditions. They are well suited for technical applications where high-performance and magnetic strength is required in very low or high temperatures. SmCo magnets are widely used in the automotive, aerospace, medical, military, industrial manufacturing, semiconductor, wind, power, oil and energy industry.

Common applications for SmCo magnets include:

- High Performance Motors

- Actuators

- Generators

- Turbo Machinery

- Electric Motors

- Magnetic Separation Devices

- Traveling Wave Tubes

- Magnetic Couplings

- Magnetic Bearings

- Sensor Systems

- Drilling Equipment

- Wind Turbine Equipment

- Energy Recovery Systems

- Medical Devices

- Missile Components

- Industrial Automation Equipment

Packing of Samarium Cobalt Block magnets 

Standard Packing:

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.

ATTs’ Samarium Cobalt Block magnets are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

Chemical Identifiers