The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2015
Filed:
Jan. 29, 2013
Applicant:
National Tsing Hua University, Hsinchu, TW;
Inventor:
Swe-Kai Chen, Hsinchu, TW;
Assignee:
NATIONAL TSING HUA UNIVERSITY, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C 5/00 (2006.01); C22C 33/00 (2006.01); C22C 38/18 (2006.01); C22C 38/20 (2006.01); C21D 6/00 (2006.01);
U.S. Cl.
CPC ...
C22C 33/00 (2013.01); C21D 6/002 (2013.01); C22C 38/18 (2013.01); C22C 38/20 (2013.01);
Abstract
The present invention discloses zinc-modified ferritic stainless steels and a manufacturing method thereof. The chemical composition of the ferritic stainless steels comprises 14-16 wt % chromium, 0.001-4 wt % zinc, 0.001-0.02 wt % nitrogen, 0.003-0.015 wt % carbon and the remaining of weight percentage of the composition is iron. By adding zinc into the composition, the ferritic stainless steels of the present invention have stronger capacity of corrosion resistance and lower manufacturing cost, as compared to the conventional stainless steels.