AUSTENITIC HEAT-RESISTANT CAST STEEL AND METHOD FOR MANUFACTURING THE SAME

An austenitic heat-resistant cast steel includes 0.1 to 0.6% by mass of C, 1.0 to 3.0% by mass of Si, 0.5 to 1.5% by mass of Mn, 0.05% by mass or less of P, 0.05 to 0.3% by mass of S, 9 to 16% by mass of Ni, 14 to 20% by mass of Cr, 0.1 to 0.2% by mass of N, and the balance of iron and inevitable im...

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Bibliographic Details
Main Authors UEDA TAKAMICHI, GENMA YOSHIKAZU, OHTAKE KAZUMI, SATO TAKAHIRO, FUJII HIROSHI
Format Patent
LanguageEnglish
Published 10.03.2016
Subjects
ALLOYS
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
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
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:An austenitic heat-resistant cast steel includes 0.1 to 0.6% by mass of C, 1.0 to 3.0% by mass of Si, 0.5 to 1.5% by mass of Mn, 0.05% by mass or less of P, 0.05 to 0.3% by mass of S, 9 to 16% by mass of Ni, 14 to 20% by mass of Cr, 0.1 to 0.2% by mass of N, and the balance of iron and inevitable impurities, in which a matrix structure of the austenitic heat-resistant cast steel is configured of austenite crystal grains, and a ferrite phase is dispersed and interposed between the austenite crystal grains so as to cover the austenite crystal grains.
Bibliography:Application Number: US201414778352