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:
Feb. 27, 1996
Filed:
Feb. 03, 1995
Nisshin Steel Co. Ltd., Tokyo, JP;
Abstract
For a purpose of providing a high strength and toughness stainless steel strip having not only a high strength of at least 1800 N/mm.sup.2 but also a high Erichsen break stress, which is a measure of toughness of a thin sheet, of as high as at least 1000 N/mm.sup.2, there is provided a stainless steel strip consists essentially of in mass % C: up to 0.1%, (exclusive of 0%); Si more than 1.0% and not more than 4.0%; Mn: up to 5.0% (exclusive of 0%); Ni: from 4.0 to 10.0%; Cr :from 12.0 to 18.0%; Cu :up to 5.0% (inclusive of 0%); Mo: from 1.0 to 5.0%; N: up to (exclusive of 0%); the balance being Fe and impurities with the proviso of C+N.gtoreq.0.1%, and wherein the alloying elements are adjusted so that a value of Md(N) defined by the following equation: