Souwest Magnetech Samarium Cobalt Magnets Supplier



Samarium cobalt magnets (also known as SmCo magnets): one of the two types of rare earth magnets is a strong permanent magnet made of an alloy of samarium and cobalt. They were developed in the early 1970s. They are generally the second-strongest type of magnet made, less strong than neodymium magnets, but have higher temperature ratings. They are expensive, brittle, and prone to cracking and chipping. Samarium-cobalt magnets have maximum energy products (BHmax) that range from 16 megagauss-oersteds (MGOe) to 32 MGOe; their theoretical limit is 34 MGOe. They are available in two ''series'', namely Series 1:5 and Series 2:17. If you want to know more about samarium cobalt magnets, Please contact Souwest Magnetech magnetic materials supplier for samarium cobalt magnet grade and samarium cobalt magnet price.





Wholesale Samarium Cobalt Magnets (SmCo) – Extreme-Temperature Solutions

Souwest Magnetech, a premier samarium cobalt magnets supplier, delivers industry-leading SmCo magnets engineered for applications demanding ultra-high temperature stability (up to 550°C) and corrosion resistance. Ideal for aerospace, military, and energy sectors, our samarium cobalt magnets for sale outperform NdFeB in extreme environments while maintaining magnetic integrity.



Key Features of Souwest SmCo Magnets



Unmatched Thermal Performance

Operate from -270°C to +550°C with ≤3% flux loss at 300°C



Superior Material Grades

Sm1Co5 (10-18 MGOe) and Sm2Co17 (20-34 MGOe) options



Zero-Corrosion Design

Intrinsic oxidation resistance – no coating required for 90% of applications



Customizable Forms

Discs, blocks, rings, arcs (0.5mm to 150mm) with ±0.02mm precision



SmCo vs NdFeB Magnets: Critical Comparison



Parameter Samarium Cobalt (SmCo) Neodymium (NdFeB)

Max Operating Temp 550°C (Grade HT-38) 220°C (H-grade)

Corrosion Resistance Inherent (Sm1Co5) Requires nickel/epoxy coat

Demagnetization Risk ≤1% flux loss at 200°C ≥10% flux loss at 150°C

Cost Efficiency Higher initial cost Lower upfront price

Brittleness Extremely brittle Moderately durable



Industrial Applications

1. Aerospace & Defense:



· Turbine sensors (MIL-STD-810G certified)



· Satellite guidance systems (radiation-hardened variants)



2. Medical Technology:



· MRI ancillary components (non-interference with imaging fields)



3. Energy & Automotive:



· EV traction motor backups (300°C+ environments)



· Deep-sea drilling sensors (saltwater-resistant Sm2Co17)



4. High-Precision Manufacturing:



· Semiconductor wafer handling (non-contaminating Sm1Co5 grades)



Technical Specifications

· Curie Temperature: 700-800°C (industry-leading thermal threshold)



· Coercivity (Hci): 18-34 kOe (superior demagnetization resistance)



· Surface Treatment: Optional gold/zinc plating for cosmetic or harsh environments



· Certifications: REACH/ROHS compliant



Bulk Order Advantages

✅ Competitive Samarium Cobalt Magnet Price: Volume discounts for 1000+ unit orders

✅ Rapid Prototyping: CNC-machined samples in 48 hours

✅ Global Logistics: DDP shipping with magnetic shielding packaging



Safety & Handling Guidelines

⚠️ Critical Notes for SmCo Magnets:



· Use non-ferromagnetic tools during assembly to prevent chipping



· Store in dry conditions (<60% humidity) to preserve surface quality



· Thermal cycling beyond 550°C causes irreversible flux loss





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Souwest Magnetech Other Magnets That Interest You



Different Shapes of Souwest Magnetech Samarium Cobalt Magnets For Sale



Samarium Cobalt Disc Magnet

Corrosion-resistant round, cylindrical samarium cobalt magnets.



Samarium Cobalt Ring Magnet

Circular shaped samarium cobalt magnets for a variety of applications.



Smco Rectangular Magnet

Highly powerful block and square shaped samarium cobalt magnets.







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