Cemented carbide

US9453271B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9453271-B2
Application numberUS-201113876171-A
CountryUS
Kind codeB2
Filing dateOct 6, 2011
Priority dateOct 8, 2010
Publication dateSep 27, 2016
Grant dateSep 27, 2016

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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.

The present invention relates to a cemented carbide for oil and gas applications comprising a hard phase comprising WC and a binder phase wherein the cemented carbide composition comprises WC and, in wt-%, 3-11 Ni, 0.5-7 Cr, 0.3-1.5 Mo, 0-1 Nb, and 0-0.2 Co, and a method of making thereof.

First claim

Opening claim text (preview).

The invention claimed is: 1. A cemented carbide composition for oil and gas applications comprising a hard phase and a binder phase, the cemented carbide composition comprising, in wt-%, 86.8-89.6 WC, 9.0-10.0 Ni, 0.6-1.0 Cr, 0.8-1.0 Mo, 0-1 Nb, and 0-0.2 Co. 2. The cemented carbide composition according to claim 1 , further comprising WC and, in wt-%, more than 0 and less than 0.5 Nb. 3. The cemented carbide composition according to claim 1 , further comprising, in wt-%, more than 0 and less than 0.2 Si, 0-1 Fe, and 0-0.08 Mn. 4. The cemented carbide composition according to claim 1 , further comprising, in wt-%, 0-0.2 Si, more than 0 and less than 1 Fe, and 0-0.08 Mn. 5. The cemented carbide composition according to claim 1 , further comprising, in wt-%, 0-0.2 Si, 0-1 Fe, and more than 0 and less than 0.08 Mn. 6. The cemented carbide composition according to claim 1 , wherein the weight ratio Cr/Ni is 0.1-0.5. 7. The cemented carbide composition of claim 1 , wherein the cemented carbide composition is a flow control device used in a corrosive, abrasive and erosive environment. 8. The cemented carbide composition according to claim 7 , wherein the flow control device is a sealing device. 9. The cemented carbide composition of claim 1 , further comprising WC and, in wt %, more than 0 and less than 0.6 Si, 0-5 Fe, 0-0.6 Mn, and 0-0.15 C. 10. The cemented carbide composition of claim 1 , further comprising WC and, in wt %, 0-0.6 Si, more than 0 and less than 5 Fe, 0-0.6 Mn, and 0-0.15 C. 11. The cemented carbide composition of claim 1 , further comprising WC and, in wt %, 0-0.6 Si, 0-5 Fe, more than 0 and less than 0.6 Mn, and 0-0.15 C. 12. The cemented carbide composition of claim 1 , further comprising WC and, in wt %, 0-0.6 Si, 0-5 Fe, 0-0.6 Mn, and more than 0 and less than 0.15 C.

Assignees

Inventors

Classifications

  • with the maximum Cr content being at least 20% but less than 30% · CPC title

  • comprising a particular metallic binder · CPC title

  • C22C29/08Primary

    based on tungsten carbide · CPC title

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Frequently asked questions

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What does patent US9453271B2 cover?
The present invention relates to a cemented carbide for oil and gas applications comprising a hard phase comprising WC and a binder phase wherein the cemented carbide composition comprises WC and, in wt-%, 3-11 Ni, 0.5-7 Cr, 0.3-1.5 Mo, 0-1 Nb, and 0-0.2 Co, and a method of making thereof.
Who is the assignee on this patent?
Carpenter Michael, Smith Jane, Sandvik Intellectual Property
What technology area does this patent fall under?
Primary CPC classification C22C29/08. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Sep 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).