Germanium-bearing ferritic stainless steels
US-2016237534-A1 · Aug 18, 2016 · US
GE stainless steels
US10208367B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10208367-B2 |
| Application number | US-201615393686-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2016 |
| Priority date | Oct 19, 2016 |
| Publication date | Feb 19, 2019 |
| Grant date | Feb 19, 2019 |
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- Title
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Abstract
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A Ge-containing stainless steel is disclosed. The disclosed Ge-containing stainless steel is principally composed of Fe and Cr. Pitting corrosion is significantly reduced when a certain amount of Ge is added. When more Ge is added, the pitting corrosion is reduced to a minimum level.
First claim
Opening claim text (preview).
What is claimed is: 1. A Ge-containing stainless steel, which is made by melting a raw material consisting of 16 to 25 wt % of Cr, 0.1 to 1 wt % of Mn, 0.1 to 1 wt % of Si, 8.72 to 12 wt % of Ge, and Fe with its weight percentage varying depending on weight percentages of Cr, Mn, Si, and Ge, and then cooling the melted raw material to obtain the Ge-containing stainless steel, wherein the Ge-containing stainless steel has no pitting corrosion when the Ge-containing stainless steel is immersed in a sodium chloride solution. 2. A Ge-containing stainless steel, which is made by melting a raw material consisting of 0 to 16 wt % of Cr, 0.1 to 1 wt % of Mn, 0.1 to 1 wt % of Si, 8.72 to 20 wt % of Ge and Fe with its weight percentage varying depending on weight percentages of Cr, Mn, Si, and Ge, and then cooling the melted raw material to obtain the Ge-containing stainless steel, wherein the Ge-containing stainless steel has no pitting corrosion when the Ge-containing stainless steel is immersed in a sodium chloride solution.
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Classifications
containing manganese · CPC title
- C22C38/18Primary
containing chromium · CPC title
containing silicon · CPC title
containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title
by melting {(C22C1/1036 takes precedence)} · CPC title
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Frequently asked questions
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- What does patent US10208367B2 cover?
- A Ge-containing stainless steel is disclosed. The disclosed Ge-containing stainless steel is principally composed of Fe and Cr. Pitting corrosion is significantly reduced when a certain amount of Ge is added. When more Ge is added, the pitting corrosion is reduced to a minimum level.
- Who is the assignee on this patent?
- Univ Nat Tsing Hua
- What technology area does this patent fall under?
- Primary CPC classification C22C38/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 19 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).