Date Aug. 22, 1996A martensitic heat resistant steel is provided which has improved high temperature creep strength, contains {TAIL ~ Co} and, at a temperature of 600 DEG C. or above, does not form {HEAD ~ an intermetallic compound} substantially having a composition of Cr40Mo20Co20W10C2 Fe 
Date Aug. 22 , 1996A martensitic heat resistant steel is provided which has improved high temperature creep strength , contains { TAIL ~ Co } and , at a temperature of 600 DEG C. or above , does not form { HEAD ~ an intermetallic compound } substantially having a composition of Cr40Mo20Co20W10C2 Fe
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH