... than other magnets2) Higher unit magnetic properties3) Smaller size and lighter weight in designing devices4) Mostly an iron based alloy ... ,N28UH,N30UH,N35SH,N38,N45,N48,N50 and N529) High energy ranging from 8MGOe to 48MGOe with wondrerful coercive force. ... 10) Less expensive,and mechanically stronger and less brittle than SmCo11 ...