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.

Date of Patent:
Feb. 25, 2020

Filed:

Aug. 10, 2016
Applicant:

Nisshin Steel Co., Ltd., Tokyo, JP;

Inventors:

Yoshiaki Hori, Tokyo, JP;

Kazunari Imakawa, Tokyo, JP;

Satoshi Suzuki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/06 (2006.01); F16F 7/00 (2006.01); C21D 8/04 (2006.01); C22C 38/04 (2006.01); C22C 38/00 (2006.01); C21D 6/00 (2006.01); C22C 38/02 (2006.01); C22C 38/40 (2006.01); C21D 9/46 (2006.01);
U.S. Cl.
CPC ...
F16F 7/00 (2013.01); C21D 6/00 (2013.01); C21D 6/004 (2013.01); C21D 8/0473 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C21D 6/005 (2013.01); C21D 9/46 (2013.01); C21D 2211/005 (2013.01); C22C 38/40 (2013.01);
Abstract

A ferritic stainless steel material excellent in vibration damping capability has a composition containing, by mass %, from 0.001 to 0.04% of C, from 0.1 to 2.0% of Si, from 0.1 to 1.0% of Mn, from 0.01 to 0.6% of Ni, from 10.5 to 20.0% of Cr, from 0.5 to 5.0% of Al, from 0.001 to 0.03% of N, from 0 to 0.8% of Nb, from 0 to 0.5% of Ti, from 0 to 0.3% of Cu, from 0 to 0.3% of Mo, from 0 to 0.3% of V, from 0 to 0.3% of Zr, from 0 to 0.6% of Co, from 0 to 0.1% of REM, from 0 to 0.1% of Ca, the balance of Fe and unavoidable impurities, and has ferrite single phase matrix with crystal grains of average crystal grain diameter of from 0.3 to 3.0 mm and a residual magnetic flux density of 45 mT or less.


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