... magnets is one basic shape of Rare earth magnets and perment magnets ... disc magnets to ... rusting. Magnets Grade Available 1 . Magnets N-( ... 80°C ;2 . Magnets M-(35M, 38M, 40M ... 100°C ;3 . Magnets H-(35H, 38H, ... 120°C ;4 . Magnets SH-(30SH, 33SH, 35SH ... 150°C ;5 . Magnets UH-( 28UH, 30UH, ... 180° C ;6 . Magnets EH-(28EH, 30EH, ... 200° C ;7 . Magnets AH-(30AH, 33AH) Max ... .Disc magnets or Neodymium Segment magnets have ...