AUSTENITIC STEEL TUBE FOR BOILER HAVING RESISTANCE TO CORROSION BY COAL ASH AND ITS MANUFACTURE

PURPOSE:To obtain a steel tube for a boiler having superior resistance to corrosion by coal ash by subjecting an austenitic steel tube contg. specified amounts of Cr and Ni to soln. heat treatment, removing the surface layer of the tube and hardening the tube. CONSTITUTION:An austenitic steel tube f...

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Hauptverfasser:	KANERO KAZUHIRO, HATTORI KEISUKE, SHIRAISHI TAKASHI, OKUBO YASUO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a steel tube for a boiler having superior resistance to corrosion by coal ash by subjecting an austenitic steel tube contg. specified amounts of Cr and Ni to soln. heat treatment, removing the surface layer of the tube and hardening the tube. CONSTITUTION:An austenitic steel tube for a boiler consisting of, by weight, 15-26% Cr, 10-35% Ni, one or more among