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