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:
May. 04, 2021
Filed:
Feb. 07, 2017
Nisshin Steel Co., Ltd., Tokyo, JP;
Seiji Mitsunaga, Tokyo, JP;
Nobuhisa Ebihama, Tokyo, JP;
Yasuhiro Ehara, Tokyo, JP;
Kazunari Imakawa, Tokyo, JP;
NIPPON STEEL STAINLESS STEEL CORPORATION, Tokyo, JP;
Abstract
A Ti-containing ferritic stainless steel sheet for an exhaust pipe flange member has a composition containing, in mass percentage, from 0.003 to 0.030% of C, 2.0% or less of S i, 2.0% or less of Mn, 0.050% or less of P, 0.040% or less of S, from 10.0 to 19.0% of Cr, 0.030% or less of N, from 0.07 to 0.50% of Ti, from 0.010 to 0.20% of Al, from 0 to 1.50% of Mo, and from 0 to 0.0030% of B, with the balance Fe and unavoidable impurities, has a K value of 150 or more, has a sheet surface hardness of 170 HV or less, and has a sheet thickness of from 5.0 to 11.0 mm. The K value equals −0.07×Cr−6790×Free(C+N)−1.44×d+267, wherein Free(C+N) corresponds to the solid-dissolved (C+N) concentration (% by mass), and d represents an average crystal grain diameter (μm).