PatentsDB

Austenitic heat-resisting cast steel

US2018155809A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2018155809-A1
Application numberUS-201615575423-A
CountryUS
Kind codeA1
Filing dateJun 2, 2016
Priority dateJun 4, 2015
Publication dateJun 7, 2018
Grant date—

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is austenitic: heat-resisting cast steel that is excellent in both of the heat resistance and the machinability. Austenitic heat-resisting cast steel, includes: C: 0.1 to 0.4 mass %; Si: 0.8 to 2.5 mass %, Mn: 0.8 to 2.0 mass %: S: 0.05 to 0.30 mass %, Ni: 5 to 20 mass %; N: 0.3 mass % or less; Zr: 0.01 to 0.20 mass %; Ce: 0.01 to 0.10 mass %; one type or more of the elements selected from the following groups of (i) to (iii), at least including (i), (i) Cr: 14 to 24 mass %, (ii) Nb: 1.5 mass % or less, and Mo: 3.0 mass % or less; and Fe and inevitable impurity as a remainder.

First claim

Opening claim text (preview).

1 . Austenitic heat-resisting cast steel, comprising: C: 0.1 to 0.4 mass %; Si: 0.8 to 2.5 mass %; Mn: 0.8 to 2.0 mass %; S: 0.05 to 0.30 mass %; Ni: 5 to 20 mass %; N: 0.3 mass % or less; Zr: 0.01 to 0.20 mass%; Ce: 0.01 to 0.10 mass %; one type or more of the elements selected from the following groups of (i) to (iii), at least including (i), (i) Cr: 14 to 24 mass %, (ii) Nb: 1.5 mass % or less, and Mo: 3.0 mass % or less; and Fe and inevitable impurity as a remainder. 2 . The austenitic heat-resisting cast steel according to claim 1 , further comprising the (ii) in addition to the (i).

Assignees

Inventors

Classifications

  • C22C38/50Primary

    with titanium or zirconium · CPC title

  • C22C38/005Primary

    containing rare earths, i.e. Sc, Y, Lanthanides · CPC title

  • C22C38/002

    containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title

  • C22C38/001

    containing N · CPC title

  • C22C38/44

    with molybdenum or tungsten · CPC title

Patent family

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View patent family 57441372

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Frequently asked questions

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What does patent US2018155809A1 cover?
Provided is austenitic: heat-resisting cast steel that is excellent in both of the heat resistance and the machinability. Austenitic heat-resisting cast steel, includes: C: 0.1 to 0.4 mass %; Si: 0.8 to 2.5 mass %, Mn: 0.8 to 2.0 mass %: S: 0.05 to 0.30 mass %, Ni: 5 to 20 mass %; N: 0.3 mass % or less; Zr: 0.01 to 0.20 mass %; Ce: 0.01 to 0.10 mass %; one type or more of the elements selected …
Who is the assignee on this patent?
Toyota Motor Co Ltd, Toyota Chuo Kenkyusho Kk
What technology area does this patent fall under?
Primary CPC classification C22C38/50. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jun 07 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).