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. 09, 2025
Filed:
Jul. 27, 2021
Applicant:
Nippon Yakin Kogyo Co., Ltd., Tokyo, JP;
Inventors:
Takayuki Watanabe, Kawasaki, JP;
Shigeru Hirata, Kawasaki, JP;
Assignee:
NIPPON YAKIN KOGYO CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 30/02 (2006.01);
U.S. Cl.
CPC ...
C22C 30/02 (2013.01);
Abstract
A highly corrosion-resistant Ni—Cr Mo—N alloy including in weight %, Ni: 22.0% or more, Cr: 22.0% or more, Mo: 5.0% or more, N: 0.180% or more, Si, Al, Mn, Fe as a remainder, and inevitable impurities, wherein the composition satisfies the following Formulas (1) to (3), and an area ratio of a sigma phase in a cross-sectional structure measured by EBSD after holding at 950° C. for 30 minutes is 1.0% or lessCr+3.3×Mo+16×N≥43.0 (1)7.3×Mo—Ni≤21.0 (2-1)1.3×Cr—Ni≤5.7 (2-2)1.6×Si+0.99×Mn+2.2×Al≤0.95 (3).