High-strength cold-rolled steel sheet having excellent surface quality and low material variation, and method for manufacturing same
US-2024384366-A1 · Nov 21, 2024 · US
Stainless steel foil and catalyst carrier for exhaust gas purifying device using the foil
US9273382B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9273382-B2 |
| Application number | US-201113637409-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2011 |
| Priority date | Mar 30, 2010 |
| Publication date | Mar 1, 2016 |
| Grant date | Mar 1, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A stainless steel foil contains, in percent by mass, 0.05% or less of C, 2.0% or less of Si, 1.0% or less of Mn, 0.003% or less of S, 0.05% or less of P, 25.0% to 35.0% of Cr, 0.05% to 0.30% of Ni, 3.0% to 10.0% of Al, 0.10% or less of N, 0.02% or less of Ti, 0.02% or less of Nb, 0.02% or less of Ta, 0.005% to 0.20% of Zr, 0.02% or less of Ce, 0.03% to 0.20% of REM excluding Ce, 0.5% to 6.0% in total of at least one of Mo and W, and the balance being Fe and incidental impurities.
First claim
Opening claim text (preview).
The invention claimed is: 1. A stainless steel foil comprising: in percent by mass, 0.05% or less of C, 0.05 to 2.0% of Si, 1.0% or less of Mn, 0.003% or less of S, 0.05% or less of P, more than 28% to 35.0% of Cr, 0.05% to 0.30% of Ni, 4.5% to 10.0% of Al, 0.10% or less of N, 0.02% or less of Ti, 0.02% or less of Nb, 0.02% or less of Ta, 0.005% to 0.05% of Zr, 0.02% or less of Ce, 0.03% to 0.20% of REM excluding Ce, 0.5% to 6.0% in total of at least one of Mo and W, and the balance being Fe and incidental impurities. 2. The stainless steel foil according to claim 1 , wherein, in percent by mass, the steel foil comprises 2.5% to 5.0% in total of at least one of Mo and W. 3. The stainless steel foil according to claim 1 , further comprising at least one of 0.01% to 0.20% (in percent by mass) of Hf, 10 to 300 ppm of Ca, and 15 to 300 ppm of Mg (in ppm by mass). 4. The stainless steel foil according to claim 1 , further comprising, in percent by mass, 0.03% to 1.0% of Cu. 5. The stainless steel foil according to claim 1 , wherein the foil thickness is 40 μm or more. 6. A catalyst carrier for an exhaust gas purifying device comprising the stainless steel foil according to claim 1 . 7. The stainless steel foil according to claim 2 , further comprising at least one of 0.01% to 0.20% (in percent by mass) of Hf, 10 to 300 ppm of Ca, and 15 to 300 ppm of Mg (in ppm by mass). 8. The stainless steel foil according to claim 2 , further comprising, in percent by mass, 0.03% to 1.0% of Cu. 9. The stainless steel foil according to claim 3 , further comprising, in percent by mass, 0.03% to 1.0% of Cu. 10. The stainless steel foil according to claim 2 , wherein the foil thickness is 40 μm or more. 11. The stainless steel foil according to claim 3 , wherein the foil thickness is 40 μm or more. 12. The stainless steel foil according to claim 4 , wherein the foil thickness is 40 μm or more. 13. A catalyst carrier for an exhaust gas purifying device comprising the stainless steel foil according to claim 2 . 14. A catalyst carrier for an exhaust gas purifying device comprising the stainless steel foil according to claim 3 . 15. A catalyst carrier for an exhaust gas purifying device comprising the stainless steel foil according to claim 4 . 16. A catalyst carrier for an exhaust gas purifying device comprising the stainless steel foil according to claim 5 .
Assignees
Inventors
Classifications
Steel alloys, e.g. stainless steel · CPC title
characterised by structure, by material or by manufacturing of catalyst support · CPC title
by catalytic processes · CPC title
Thickness of the active catalytic layer · CPC title
Membranes · CPC title
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Frequently asked questions
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- What does patent US9273382B2 cover?
- A stainless steel foil contains, in percent by mass, 0.05% or less of C, 2.0% or less of Si, 1.0% or less of Mn, 0.003% or less of S, 0.05% or less of P, 25.0% to 35.0% of Cr, 0.05% to 0.30% of Ni, 3.0% to 10.0% of Al, 0.10% or less of N, 0.02% or less of Ti, 0.02% or less of Nb, 0.02% or less of Ta, 0.005% to 0.20% of Zr, 0.02% or less of Ce, 0.03% to 0.20% of REM excluding Ce, 0.5% to 6.0% in…
- Who is the assignee on this patent?
- Mizutani Akito, Fukuda Kunio, Ishikawa Shin, and 8 more
- What technology area does this patent fall under?
- Primary CPC classification C22C38/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 01 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).