A permanent magnet alloy 4, wherein C is 0.05 to 0.16%, {TAIL ~ S} is {HEAD ~ 0.3 to 1.0%} and Nb is 1.4 to 1.6% 
A permanent magnet alloy 4 , wherein C is 0.05 to 0.16 % , { TAIL ~ S } is { HEAD ~ 0.3 to 1.0 % } and Nb is 1.4 to 1.6 %
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH