Invention Grant
- Patent Title: High chromium and silicon-rich corrosion resistant steel and article comprising the same
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Application No.: US17396763Application Date: 2021-08-09
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Publication No.: US12104233B2Publication Date: 2024-10-01
- Inventor: Jien-Wei Yeh
- Applicant: National Tsing Hua University
- Applicant Address: TW Hsinchu
- Assignee: National Tsing Hua University
- Current Assignee: National Tsing Hua University
- Current Assignee Address: TW Hsinchu
- Agency: ANOVA LAW GROUP, PLLC
- Priority: TW 0127675 2021.07.28
- Main IPC: C22C38/34
- IPC: C22C38/34 ; C22C38/04 ; C22C38/06 ; C22C38/20 ; C22C38/22 ; C22C38/24 ; C22C38/26 ; C22C38/28 ; C22C38/30 ; C22C38/32

Abstract:
A high chromium and silicon-rich corrosion resistant steel is disclosed, which comprises, in weight percent: 22-30% Cr, 2-10% Si, and the balance Fe and incidental impurities, of which a content amount of Cr and Si is less than 37%. Experimental data reveal that, samples of the high chromium and silicon-rich corrosion resistant steel all have a pitting potential greater than 0.8 V and a hardness in a range between HV170 and HV500 in the as-homogenized condition. As a result, experimental data have proved that the high chromium and silicon-rich corrosion resistant steel of the present invention can replace conventional stainless steels having poor pitting resistance like type 304 and type 316 L, and then be adopted for the applications of components and/or structural parts requiring high corrosion resistance.
Public/Granted literature
- US20230051620A1 HIGH CHROMIUM AND SILICON-RICH CORROSION RESISTANT STEEL AND ARTICLE COMPRISING THE SAME Public/Granted day:2023-02-16
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