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