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N40SH grade is for high temperature applications.
Operating temperature: 300 degree F (150 degree C)

Much stronger and cheaper than other types of high temp magnets such as SmCo, AlniCo and ceramic magnets.

These 3/8" x 1/4" neodymium disc magnets are engineered for reliable performance in elevated temperature environments. Built with N40SH high-temperature grade, they maintain magnetic strength where standard neodymium magnets may begin to lose performance, making them a dependable choice for heat-exposed applications.

The 3/8" diameter provides strong surface contact for a secure hold, while the thicker 1/4" profile delivers added magnetic depth and stability. This combination makes them suitable for both precision placement and more demanding setups. Finished with a durable nickel coating, each magnet is protected against corrosion and everyday wear while maintaining a clean, professional appearance.


Common Applications:

  • High-temperature environments and heat-exposed assemblies
  • Motors, sensors, and mechanical components
  • Magnetic fixtures in workshops or industrial settings
  • Embedding into materials exposed to heat
  • DIY projects requiring heat-resistant magnets
  • Automotive or equipment-related applications


Nickel-Copper-Nickel 3 layer coated for maximum durability and protection again corrosion

ISO Certified, top notch quality and superior performance guaranteed

Super Powerful N40SH Neodymium Magnets, Stronger than N38, N38SH, N35SH and N35

Approximate Pull Force: 8 lbs

BrMax: 12900 gauss

Magnetized through the Thickness, poles are on the long surfaces

Contact us for high temp neodymium magnets wholesale discount

Frequently Bought Together

Total price$ 91.75

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