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:
Sep. 02, 2025
Filed:
Apr. 26, 2021
Nippon Steel Stainless Steel Corporation, Tokyo, JP;
Shinji Tsuge, Tokyo, JP;
Masatomo Kawa, Tokyo, JP;
Yukio Nakamura, Tokyo, JP;
Kenichiro Kusunoki, Tokyo, JP;
Yukihiro Nishida, Tokyo, JP;
NIPPON STEEL STAINLESS STEEL CORPORATION, Tokyo, JP;
Abstract
An alloy material is provided which contains elements including, in mass %, C: 0.010 to 0.10%, Si: more than 0.10% to 0.50% or less, Mn: 0.05 to 0.50%, Ni: 34.5 to 37.0%, and Nb: 0.001 to 1.0%, and which satisfies [T≤T-2], [C—Nb/7.7-Ta/15≤0.045], [Nb-7.7C≤0.30], and [Ta-15C≤0.30]. Where, each symbol of an element in the above formulas represents a content (mass %) of the corresponding element, Trepresents a Curie temperature (° C.) of the alloy material, and Trepresents a Curie temperature (° C.) of the alloy material after the alloy material is held at 900° C. for one minute and thereafter is cooled under conditions such that an average cooling rate in a temperature range from 600 to 300° C. is 0.2° C./s.