Welding gas and plasma welding method
US-9586293-B2 · Mar 7, 2017 · US
Ferritic stainless steel sheet for plasma arc welding and welding method therefor
US10272513B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10272513-B2 |
| Application number | US-201515329856-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 12, 2015 |
| Priority date | Jul 31, 2014 |
| Publication date | Apr 30, 2019 |
| Grant date | Apr 30, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
The ferritic stainless steel sheet contains, in mass%, C: 0.020% or less, Si: 0.6% or less, Mn: 0.5% or less, P: 0.04% or less, S: 0.010% or less, Al: 0.015% or more and 0.20% or less, Cr: 17.0% or more and 24.0% or less, Ni: less than 0.6%, N: 0.020% or less, Ca: 0.0002% or more and 0.0020% or less, and O: 0.0050% or less and further contains one or two selected from Ti: 0.01% or more and 0.45% or less and Nb: 0.01% or more and 0.55% or less, with the balance being Fe and unavoidable impurities. The ferritic stainless steel sheet satisfies (Ti+Nb×48/93)/(C+N)≥8.0 (where Ti, Nb, C, and N represent the contents (% by mass) of these elements, respectively).
First claim
Opening claim text (preview).
The invention claimed is: 1. A ferritic stainless steel sheet for plasma arc welding, comprising, in mass %, C: 0.020% or less, Si; 0.6% or less, Mn; 0.5% or less, P: 0.04% or less, S: 0.010% or less, Al: 0.015% or more and 0.20% or less, Cr: 17.0% or more and 24.0% or less, Ni: less than 0.6%, N: 0.020% or less, Ca: 0.0002% or more and 0.0020% or less, and O: 0.0020% or more and 0.0050% or less, and further comprising one or two selected from Ti: 0.01% or more and 0.45% or less and Nb: 0.01% or more and 0.55% or less, with the balance being Fe and unavoidable impurities, wherein (Ti+Nb×48/93)/(C +N)≥8.0 (1) is satisfied (in formula (1), Ti Nb, C, and N represent the contents (% by mass) of these elements, respectively). 2. The ferritic stainless steel sheet for plasma arc welding according to claim 1 , further comprising, in mass %, one or at least two selected from Mo: 0.01% or more and 2.0% or less, Cu: 0.01% or more and 1.0% or less and Co: 0.01% or more and 0.2%or less. 3. The ferritic stainless steel sheet for plasma arc welding according to claim 1 , further comprising in mass %, one or at least two selected from V: 0.01% or more and 0.10% or less, Zr: 0.01% or more and 0.10% or less, and B: 0.0002% or more and 0.0050% or less. 4. The ferritic stainless steel sheet for plasma arc welding according to claim 1 , wherein the ferritic stainless steel sheet is used for keyhole welding. 5. A plasma keyhole welding method in which the ferritic stainless steel sheet for plasma arc welding according to claim 1 is used for plasma keyhole welding. 6. The ferritic stainless steel sheet for plasma arc welding according to claim 2 , further comprising, in mass %, one or at least two selected from V: 0.01% or more and 0.10% or less, Zr: 0.01% or more and 0.10% or less, and B: 0.0002% or more and 0.0050% or less. 7. The ferritic stainless steel sheet or plasma arc welding according to claim 2 , wherein the ferritic stainless steel sheet is used for keyhole welding. 8. The ferritic stainless steel sheet for plasma arc welding according to claim 3 , wherein the ferritic stainless steel sheet is used for keyhole welding. 9. The ferritic stainless steel sheet for plasma arc welding according to claim 6 , wherein the ferritic stainless steel sheet is used for keyhole welding. 10. A plasma keyhole welding method in which the ferritic stainless steel sheet for plasma arc welding according to claim 2 is used for plasma keyhole welding. 11. A plasma keyhole welding method in which the ferritic stainless steel sheet for plasma arc welding according to claim 3 is used for plasma keyhole welding. 12. A plasma keyhole welding method in which the ferritic stainless steel sheet for plasma arc welding according to claim 6 is used for plasma keyhole welding.
Assignees
Inventors
Classifications
containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title
containing manganese · CPC title
with copper · CPC title
containing silicon · CPC title
- B23K10/02Primary
Plasma welding · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10272513B2 cover?
- The ferritic stainless steel sheet contains, in mass%, C: 0.020% or less, Si: 0.6% or less, Mn: 0.5% or less, P: 0.04% or less, S: 0.010% or less, Al: 0.015% or more and 0.20% or less, Cr: 17.0% or more and 24.0% or less, Ni: less than 0.6%, N: 0.020% or less, Ca: 0.0002% or more and 0.0020% or less, and O: 0.0050% or less and further contains one or two selected from Ti: 0.01% or more and 0.45…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification B23K10/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 30 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).