AUSTENITIC HEAT-RESISTANT CAST STEEL

Title:

AUSTENITIC HEAT-RESISTANT CAST STEEL

Document Type and Number:

WIPO Patent Application WO/2011/124970

Kind Code:

A8

Abstract:

An iron (Fe)-based austenitic heat-resistant cast steel includes, based on a total of 100 mass% (indicated below simply as "%"): 0.4 to' 0:8% of carbon (C), 3.0% or less of silicon (Si), 0.5 to 2.0% of manganese (Mn), 0.05%» or less of phosphorus (P), 0.03 to 0.2% of sulfur (S), 18 to 23% of chromium (Cr), 3.0 to 8.0% of nickel. (Ni) and 0.05 to 0.4%) of nitrogen (N). A ratio of chromium (Cr) to carbon (C) is in a range of 22.5 ≤ Cr/C ≤ 57.5. The cast steel includes one or two or more of vanadium (V), molybdenum (Mo), tungsten (W) and niobium (Nb) in a total amount of less than 0.2%.

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Inventors:

GENMA YOSHIKAZU (JP)
KURAMOTO GO (JP)
ZHANG ZHONG-ZHI (JP)

Application Number:

PCT/IB2011/000740

Publication Date:

January 12, 2012

Filing Date:

April 05, 2011

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
AISIN TAKAOKA LTD (JP)
GENMA YOSHIKAZU (JP)
KURAMOTO GO (JP)
ZHANG ZHONG-ZHI (JP)

International Classes:

C22C38/00; C22C38/04; C22C38/34; C22C38/60

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