Steel material and mold
US-2024133005-A1 · Apr 25, 2024 · US
Ferritic stainless steel foil
US2016160328A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016160328-A1 |
| Application number | US-201414907690-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 16, 2014 |
| Priority date | Jul 30, 2013 |
| Publication date | Jun 9, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
The ferritic stainless steel foil has a composition containing, by mass %, C: 0.050% or less, Si: 0.20% or less, Mn: 0.20% or less, P: 0.050% or less, S: 0.0050% or less, Cr: 10.5% or more and 20.0% or less, Ni: 0.01% or more and 1.00% or less, Al: more than 1.5% and less than 3.0%, Cu: 0.01% or more and 1.00% or less, N: 0.10% or less, and further contains one or more elements selected from Ti: 0.01% or more and 1.00% or less, Zr: 0.01% or more and 0.20% or less, and Hf: 0.01% or more and 0.20% or less, and the balance being Fe and inevitable impurities. This enables a composite layer of an Al oxide layer and a Cr oxide layer to be formed on the surface of the ferritic stainless steel foil in a high-temperature oxidizing atmosphere at 800° C. or more.
First claim
Opening claim text (preview).
1 .- 4 . (canceled) 5 . A ferritic stainless steel foil comprising a composition containing, by mass %: C: 0.050% or less, Si: 0.20% or less, Mn: 0.20% or less, P: 0.050% or less, S: 0.0050% or less, Cr: 10.5% or more and 20.0% or less, Ni: 0.01% or more and 1.00% or less, Al: more than 1.5% and less than 3.0%, Cu: 0.01% or more and 1.00% or less, N: 0.10% or less, and one or more elements selected from Ti: 0.01% or more and 1.00% or less, Zr: 0.01% or more and 0.20% or less, and Hf: 0.01% or more and 0.20% or less, and the balance being Fe and inevitable impurities. 6 . The ferritic stainless steel foil according to claim 5 , wherein the composition further contains, by mass %, one or more elements selected from Ca: 0.0010% or more and 0.0300% or less, Mg: 0.0015% or more and 0.0300% or less, and REM: 0.01% or more and 0.20% or less. 7 . The ferritic stainless steel foil according to claim 5 , wherein the composition further contains, by mass %, one or more elements selected from Nb: 0.01% or more and 1.00% or less, Mo: 0.01% or more and 3.00% or less, W: 0.01% or more and 3.00% or less, and Co: 0.01% or more and 3.00% or less such that the total content of the one or more elements is 0.01% or more and 3.00% or less. 8 . The ferritic stainless steel foil according to claim 5 , further comprising a composite layer including an Al oxide layer and a Cr oxide layer, the composite layer being disposed on a surface of the ferritic stainless steel foil, wherein the area fraction of the Al oxide layer is 20% or more. 9 . The ferritic stainless steel foil according to claim 6 , wherein the composition further contains, by mass %, one or more elements selected from Nb: 0.01% or more and 1.00% or less, Mo: 0.01% or more and 3.00% or less, W: 0.01% or more and 3.00% or less, and Co: 0.01% or more and 3.00% or less such that the total content of the one or more elements is 0.01% or more and 3.00% or less. 10 . The ferritic stainless steel foil according to claim 6 , further comprising a composite layer including an Al oxide layer and a Cr oxide layer, the composite layer being disposed on a surface of the ferritic stainless steel foil, wherein the area fraction of the Al oxide layer is 20% or more. 11 . The ferritic stainless steel foil according to claim 7 , further comprising a composite layer including an Al oxide layer and a Cr oxide layer, the composite layer being disposed on a surface of the ferritic stainless steel foil, wherein the area fraction of the Al oxide layer is 20% or more. 12 . The ferritic stainless steel foil according to claim 9 , further comprising a composite layer including an Al oxide layer and a Cr oxide layer, the composite layer being disposed on a surface of the ferritic stainless steel foil, wherein the area fraction of the Al oxide layer is 20% or more.
Assignees
Inventors
Classifications
No layer or component greater than 5 mils thick · CPC title
Oxide of transition metal or Al · CPC title
Oxidising of ferrous surfaces · CPC title
Oxidising of ferrous surfaces · CPC title
- C22C38/52Primary
with cobalt · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016160328A1 cover?
- The ferritic stainless steel foil has a composition containing, by mass %, C: 0.050% or less, Si: 0.20% or less, Mn: 0.20% or less, P: 0.050% or less, S: 0.0050% or less, Cr: 10.5% or more and 20.0% or less, Ni: 0.01% or more and 1.00% or less, Al: more than 1.5% and less than 3.0%, Cu: 0.01% or more and 1.00% or less, N: 0.10% or less, and further contains one or more elements selected from Ti…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification C22C38/52. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 09 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).