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:
Nov. 09, 1999
Filed:
Sep. 24, 1997
Applicant:
Inventors:
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; C22C / ;
U.S. Cl.
CPC ...
1882 / ; 148325 ;
Abstract
A brake disc capable of being used in an as quenched state, excellent in rusting resistance, toughness and resistance to softening resulting from heat generation caused by braking, and preferably useful as a brake disc for a two-wheeled vehicle, which is produced from a martensitic stainless steel comprising 0.02 to 0.10% of C, up to 0.03% of N, up to 0.05% of Si, 0.5 to 1.5% of Mn, up to 0.5% of Ni, 10 to 15% of Cr, 0.5 to 2.5% of Cu, up to 0.1% of Al and the balance substantially Fe and unavoidable impurities provided that the amount of C+N is from 0.05 to 0.1% and .gamma.p is at least 90, and a process for producing the same.