Samarium Cobalt Magnets

New-Mag magnetics is a professional leader in China in Samarium Cobalt Magnets manufacturing with high quality and reasonable prices. Welcome to contact us.

Samarium Cobalt (SmCo) magnets represent the pinnacle of high-performance permanent magnet technology for the most demanding industrial and scientific applications. As a premier class of Samarium Cobalt Rare Earth Magnets, they offer an exceptional combination of magnetic strength, thermal stability, and corrosion resistance, often outperforming other magnet types in extreme environments. These Samarium Cobalt Rare Earth Magnets are engineered from an alloy of samarium and cobalt, providing a robust magnetic solution where reliability is non-negotiable. Their superior performance makes them the material of choice in aerospace, defense, medical devices, and high-end motors and sensors. If your project requires magnets that maintain their magnetic properties under high temperatures, corrosive conditions, or where dimensional stability is critical, Samarium Cobalt Rare Earth Magnets provide a dependable and long-lasting solution.
The defining characteristics of Samarium Cobalt Magnets are their exceptional ability to withstand high operating temperatures while resisting demagnetization. Unlike other permanent magnets, a Samarium Cobalt Magnet can reliably operate in environments exceeding 300°C (572°F), making them indispensable in applications such as turbine systems, downhole drilling tools, and high-performance electric motors. Furthermore, their inherent resistance to oxidation and corrosion means they rarely require protective plating or coating, even in challenging conditions, which simplifies design and enhances long-term reliability. This unique blend of thermal stability and environmental resilience ensures that Samarium Cobalt Magnets deliver consistent performance over their extended service life.

To understand the precise capabilities of these magnets, it is essential to review their key technical parameters, which are typically categorized into two main series: SmCo 1:5 and SmCo 2:17.

Key Advantages

• High Maximum Operating Temperature (up to 350°C)
• Excellent Thermal Stability and Low Temperature Coefficient
• Superior Corrosion and Oxidation Resistance
• High Coercivity and Resistance to Demagnetization
• Outstanding Performance in Critical and Miniature Applications

Typical Magnetic Properties by Grade

Physical and Environmental Properties

Why Choose Our Products?

1. Superior High-Temperature Resistance

Samarium Cobalt Magnets possess exceptional thermal stability, with a maximum operating temperature of 350°C. Even in extreme environments exceeding 300°C (such as turbine systems, downhole drilling, and high-performance motors), they maintain stable magnetic properties, far surpassing ordinary permanent magnets.

2. Strong Corrosion and Oxidation Resistance

Due to the inherent chemical properties of the material, Samarium Cobalt magnets exhibit excellent corrosion resistance. In challenging application environments, they typically require no additional electroplating or coating protection, simplifying product design and significantly enhancing long-term operational reliability.

3. High Resistance to Demagnetization

This series of products possesses extremely high intrinsic coercivity ($H_{cj}$), effectively resisting interference from external reverse magnetic fields, ensuring durable and stable magnetic force in critical missions and precision instruments.

4. Low Temperature Coefficient and High Dimensional Stability

Samarium Cobalt Magnets exhibit an extremely low temperature coefficient, maintaining a constant magnetic flux output even in environments with significant temperature fluctuations. Furthermore, their excellent dimensional stability meets the stringent precision requirements of aerospace, medical equipment, and other fields.

5. Wide Range of Grades and Robust Performance Data

A variety of series and grades (e.g., SmCo 18 to SmCo 28) are available, ranging from SmCo 1:5 to SmCo 2:17, with a maximum energy product ($(BH)_{max}$) of approximately 235 kJ/m³, allowing buyers to precisely select the appropriate model based on specific application needs (such as miniaturization or strong magnetic force).

6. Leading Manufacturing Backing and Cost-Effectiveness

New-Mag Magnetics, a leading professional manufacturer of Samarium Cobalt Magnets in China, provides high-quality, reasonably priced products. Its products have proven successful in high-demand fields such as defense, aerospace, and medical, earning it a strong industry reputation.