Sm2co17 magnet price manufacturers

The price of Sm2Co17 magnets is primarily driven by their Magnetic Energy Product (BHmax), which typically ranges from 20 to 32 MGOe. Higher grades command a premium due to the increased concentration of Samarium and Cobalt. Buyers must also specify the Temperature Coefficient; Sm2Co17 is prized for its ability to operate at temperatures up to 300°C-350°C without significant irreversible loss. Ensure the supplier provides a Demagnetization Curve (B-H Curve) at specific operating temperatures to verify performance against the quoted price.

Sm2Co17 contains approximately 25-32% Samarium and 45-55% Cobalt, with the remainder being Iron, Copper, and Zirconium. Because Cobalt is a volatile commodity traded on the London Metal Exchange (LME), prices can fluctuate weekly. Professional buyers should request formula-based pricing or a quote validity period of no more than 7-14 days to reflect current raw material costs. Additionally, the purity of the Samarium used significantly impacts the final price and magnetic stability.

For B2B procurement, ensure the magnets meet ISO 9001:2015 for quality management and IATF 16949 if sourcing for automotive sectors. Since these magnets are often used in sensors and aerospace, RoHS and REACH compliance is mandatory to ensure the absence of hazardous substances. Always request a Certificate of Analysis (CoA) and a Salt Spray Test report if the magnets require plating (such as Nickel or Epoxy) to prevent oxidation in humid environments.

Sm2Co17 is selected for environments where NdFeB fails, specifically in high-temperature motors, aerospace sensors, and marine applications. Its superior corrosion resistance means it often does not require coating, potentially saving on secondary processing costs. If your application involves cryogenic temperatures or extreme heat, the price premium of Samarium Cobalt is an economically feasible investment to prevent system failure.

The greatest risk is 'grade substitution,' where a supplier provides a lower BHmax material than specified. To mitigate this, use Third-Party Inspection services (like SGS or Intertek) to perform flux density testing before the balance payment. For secure transactions, utilize Made-in-China.com's Secured Trading services to ensure funds are only released upon confirmation of product quality and shipping documents.

Magnets are classified as Dangerous Goods (Class 9) for air freight if they exceed certain magnetic field strengths. You must ensure the supplier provides Magnetic Shielding Packaging (using iron sheets and foam) and a Non-Magnetic Inspection Report for air transport. For sea freight to Western markets, ensure the wooden pallets are ISPM 15 heat-treated to avoid customs delays and fines.

Focus on Total Volume Commitment rather than single-order quantity. Since Sm2Co17 involves complex sintering and precision grinding, suppliers prefer long-term contracts that allow them to hedge Cobalt price risks. Ask for a breakdown of Slicing and Grinding costs, as complex shapes (arcs or thin wedges) significantly increase labor and waste, impacting the unit price more than the raw material weight itself.

Check the HS Code (typically 8505.11) for specific import duties in your country. For example, US Section 301 tariffs or EU anti-dumping duties may apply to certain permanent magnets. Always request DDP (Delivered Duty Paid) quotes if you want the supplier to handle all tax complexities, or work with a freight forwarder experienced in Rare Earth metal logistics to optimize customs clearance.