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:
Dec. 11, 2018
Filed:
Jul. 16, 2013
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Chiyoda-ku, Tokyo, JP;
Inventors:
Atsushi Nosaka, Tokyo, JP;
Yasuyoshi Hidaka, Tokyo, JP;
Yasuto Higashida, Tokyo, JP;
Ryuutarou Ogata, Tokyo, JP;
Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 25/00 (2006.01); C23C 4/00 (2016.01); C23C 4/08 (2016.01); C23C 30/00 (2006.01); C23C 28/02 (2006.01); C22C 30/00 (2006.01); C22C 38/00 (2006.01); B21B 19/04 (2006.01); B32B 15/01 (2006.01); C22C 19/05 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/44 (2006.01); C21D 9/00 (2006.01); C23C 4/02 (2006.01); C23C 4/18 (2006.01); C23C 28/00 (2006.01); C23C 4/067 (2016.01); C23C 4/131 (2016.01);
U.S. Cl.
CPC ...
B21B 25/00 (2013.01); B21B 19/04 (2013.01); B32B 15/013 (2013.01); B32B 15/015 (2013.01); C21D 9/0068 (2013.01); C22C 19/05 (2013.01); C22C 19/055 (2013.01); C22C 19/058 (2013.01); C22C 30/00 (2013.01); C22C 38/00 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/44 (2013.01); C23C 4/02 (2013.01); C23C 4/067 (2016.01); C23C 4/08 (2013.01); C23C 4/131 (2016.01); C23C 4/18 (2013.01); C23C 28/021 (2013.01); C23C 28/321 (2013.01); C23C 28/324 (2013.01); C23C 30/005 (2013.01); C21D 2251/00 (2013.01);
Abstract
A piercing plug of the present invention includes: a plug body; a Ni—Cr layer formed on a surface of the plug body; and a sprayed coating formed on a surface of the Ni—Cr layer. The plug body contains, by mass %, 20 to 30% of Cr, 30 to 55% of Ni, 0.005 to 0.5% of C, 0.1 to 1.0% of Si, 0.2 to 1.5% of Mn, and at least one of Mo and W which satisfy a following conditional expression (A), and remainder including Fe and impurities.1.5%≤Mo+0.5W≤8.5%  (A)