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Samarium Cobalt Magnets

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MOQ : 100 Pieces

Samarium Cobalt Magnets Specification

Magnet Grade
18, 20, 22, 24, 26, 28, 30

Surface Finish
Smooth, uncoated or nickel coated

Composite
Samarium and Cobalt alloy

Material
Samarium Cobalt (SmCo)

Application
Industrial, Aerospace, Electron Devices, Motors, Sensors, Medical Equipment

Product Type
Samarium Cobalt Magnet (SmCo Magnet)

Magnet Category
Rare Earth Magnet

Magnet Type
Permanent Magnet

Shape
Block, Disc, Ring, Arc, and Custom Shapes

Size Range
Customizable, typically from 1 mm to 100 mm

Weight
As per size and shape specification

Color
Metallic Grey

Usage & Applications
Motors, Generators, Sensors, Magnetic Couplings, Medical Devices, Aerospace Components

Capacity
High magnetic strength

Lead Time
As per quantity & custom requirements

Coercivity
12 to 30 kOe (depending on grade)

Mechanical Strength
Brittle, handle with care

Standard Packaging
Individually packed or bulk as per request

Magnetic Orientation
Axial or custom orientation possible

Corrosion Resistance
Excellent, suitable for harsh environments

Tolerance
±0.05 mm (typical, can be customized)

Remanence (Br)
0.82 - 1.18 T

Operating Temperature Range
Up to 350°C to 550°C, depending on grade

Maximum Energy Product (BHmax)
16 to 32 MGOe

Density
~8.2 g/cm³

Samarium Cobalt Magnets Trade Information

Minimum Order Quantity
100 Pieces

Supply Ability
1000 Pieces Per Day

Delivery Time
1 Days

About Samarium Cobalt Magnets

Built with the help of sintering process Samarium Cobalt (SmCo) exists in two different forms. The first is Sm1Co5 (SmCo 1:5) and which has a higer energy product of between 18 and 22 MGOe. The second and the most common one is Sm2Co17 (SmCo 2:17) and it has an optimum energy product of between 22 and 30 MGOe. The most importantly, SmCo is equipped with alloy is around 35% Samarium (Sm) and 60% Cobalt (Co) with the balance being from varying amounts of Iron (Fe), Copper (Cu), Hafnium (Hf) and Zirconium (Zr). Praseodymium (Pr) may also be used

Unmatched High-Temperature Performance

Samarium Cobalt magnets are engineered to retain their magnetic properties in extreme temperatures, ranging from 350C up to an impressive 550C, depending on the grade. This superior heat resistance makes them vital components in advanced industrial, aerospace, and medical applications that demand stability under harsh conditions.

Superior Corrosion Resistance for Harsh Environments

SmCo magnets demonstrate excellent resistance to oxidation and corrosion, even without a protective coating. They are ideal for challenging environments where moisture, chemicals, or temperature fluctuations are factors. Smooth surface finishes, including uncoated or nickel options, are available to match specific application needs.

Precision Engineering and Customization

These magnets can be tailored to exact specifications, with shapes like blocks, discs, rings, arcs, or custom geometries and sizes typically from 1 mm to 100 mm. With standard tolerances of 0.05 mm (customizable), they integrate seamlessly into motors, sensors, generators, or other demanding assemblies.

FAQs of Samarium Cobalt Magnets:

Q: How are Samarium Cobalt magnets suitable for high-temperature applications?

A: Samarium Cobalt magnets are specifically formulated to maintain strong magnetic performance even at elevated temperaturesup to 550C, depending on the grade. This makes them ideal for use in environments where thermal stability is crucial, such as in aerospace engines, industrial machinery, and high-temperature sensors.

Q: What benefits does excellent corrosion resistance provide for SmCo magnets?

A: Exceptional corrosion resistance allows Samarium Cobalt magnets to function reliably in harsh and moist environments without significant degradation. This property removes the need for extensive surface coatings, making them especially useful in aerospace, medical, and industrial applications where long-term durability is required.

Q: When should I choose Samarium Cobalt magnets over other rare earth magnets?

A: Opt for Samarium Cobalt magnets when your application requires a combination of high magnetic strength, excellent temperature stability, and resistance to corrosion. While they are more brittle and costly than alternatives such as Neodymium magnets, their performance under challenging conditions often justifies their selection.

Q: Where are Samarium Cobalt magnets commonly used?

A: These magnets are widely utilized in industries such as aerospace, electronics, precision motors, magnetic sensors, medical devices, and renewable energy systems. Their reliability in extreme environments makes them a popular choice for applications where other magnets may fail.

Q: What customization options are available for Samarium Cobalt magnets?

A: Customization includes various shapes (block, disc, ring, arc, and custom forms), sizes generally between 1 mm and 100 mm, and both axial and custom magnetic orientations. Tolerances can be as precise as 0.05 mm, with special packaging options for safe transportation and handling supplied by manufacturers and exporters from India.

Q: How should Samarium Cobalt magnets be handled during application or installation?

A: Since SmCo magnets are inherently brittle, it is important to handle them with care to prevent chipping or breakage. Use appropriate tools, avoid mechanical shocks, and follow best practices during mounting or assembly to maintain their integrity and performance.

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