In {TAIL ~ an Fe base alloy}, Ni is contained by 28 to 34% by weight and Co by 2 to 7% by weight with an average grain size of {HEAD ~ 30 μm} or less 
In { TAIL ~ an Fe base alloy } , Ni is contained by 28 to 34 % by weight and Co by 2 to 7 % by weight with an average grain size of { HEAD ~ 30 μm } or less
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH 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 HEAD OTH OTH