China Neodymium And Ferrite Magnets Manufacturer & Supplier 
N38UH is a sintered neodymium-iron-boron grade with high intrinsic coercivity, offering superior demagnetization resistance and excellent high-temperature stability. It is widely used in motors, sensors, and magnetic assemblies operating in high-temperature environments.
The maximum energy product of 38UH ranges from 36–39 MGOe, indicating strong magnetic energy density and favorable magnetic properties. The residual flux density (Br) ranges from 12.3 to 12.8 kGs. With intrinsic coercivity Hcj ≥ 25 kOe, it maintains significantly superior performance stability compared to standard N38 grades under high-temperature or strong external magnetic field conditions.
The figure below shows the BH curve measured for neodymium 38uh recently (December 28, 2025).
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