... coating,plating or suitable surface treatment.5) Less prone to chipping during handling6) Lower temperature coefficient of magnetic properities ... N35SH,N38,N45,N48,N50 and N529) High energy ranging from 8MGOe to 48MGOe with wondrerful coercive force.10) Less expensive, ... brittle than SmCo11) Density:13%,smaller than SmCo products12) For most applications,coating or plating is recommended.13) Advantages: ...