| 简介 |
An austenitic steel alloy having excellent creep strength and resistance to oxidation and corrosion at elevated use temperatures up to approximately 750° C. has the following chemical composition (in weight %) : 0.02≰C≰0.15%; 0.1≰Si≰2.0%; 25≰Cr≰33%; 22≰Ni≰38%; 1≰Mo≰6%; 0.4≰Nb≰1.5%; B≰0.0120%; 0.01≰N≰0.2%; Mn≰2%; Co≰5%; W≰2%; Al≰0.05%; Cu≰5%; Ti≰0.5%; Ta≰0.5%; V≰0.5%; P≰0.05%; S≰0.05%, Remainder iron with melting related impurities and optional addition of rare earths and reactive elements such as Ce, Hf, La, Re, Sc and/or Y of together 1%. |
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