{TAIL ~ A high temperature austenitic stainless steel} 1 wherein {HEAD ~ N} +2Al ≦0.350% 
{ TAIL ~ A high temperature austenitic stainless steel } 1 wherein { HEAD ~ N } +2Al ≦0.350 %
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH