Hast Neodymium Magnet Manufacturer – China Rare Earth Magnet Limited

Compared with traditional sintered neodymium iron boron magnets , HAST NdFeB magnets are more superior in corrosion resistance without the protection of plating. China Rare Earth Magnet Limited customizes HAST neodymium magnets like N38SHT, N35H HAST, N38H HAST as per customer’s special demands and applications. “HAST” is short for “Highly Accelerated Temperature/Humidity Stress Test.” The main features of HAST neodymium magnet is increasing the resistance of oxidation & corrosion and reducing the weight loss in testing and using. Thus, HAST NdFeB magnets are mostly used in the applications like elevators, motors, pumps, wind generators, radar, military aerospace and some other fields which have high requirements to magnets.



Normal Standards for Low Weight Loss Test of HAST Neodymium Permanent Magnets :
USA Standard: PCT at 121ºC±1ºC, 95% humidity, 2 atmospheric pressure for 96 hours, weight loss < 5-10mg/cm2
Europe Standard: PCT at 130 ºC±2ºC, 95% humidity, 3 atmospheric pressure for 168 hours, weight loss < 2-5mg/cm2
Obviously, Europe standard is more strictly than USA standard.

HAST Test Equipment