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:
Jul. 31, 2007
Filed:
Jul. 13, 2004
Junichi Katsuki, Shin-Nanyo, JP;
Teruyoshi Iida, Shin-Nanyo, JP;
Takashi Yamauchi, Shin-Nanyo, JP;
Satoshi Suzuki, Shin-Nanyo, JP;
Naoto Hiramatsu, Shin-Nanyo, JP;
Junichi Katsuki, Shin-Nanyo, JP;
Teruyoshi Iida, Shin-Nanyo, JP;
Takashi Yamauchi, Shin-Nanyo, JP;
Satoshi Suzuki, Shin-Nanyo, JP;
Naoto Hiramatsu, Shin-Nanyo, JP;
Nisshin Steel Co., Ltd., Tokyo, JP;
Abstract
A new austenitic stainless steel containing approximately 0.1-1.0 mass % of Si and not more than approximately 0.003 mass % of Al. Nonmetallic inclusions dispersed in a steel matrix are converted to MnO—SiO—AlOcontaining not less than approximately 15 mass % of SiOand not more than approximately 40 mass % of AlO. During steel making, molten steel is covered with basic slag and heavily deoxidized with a Si alloy whose Al content is controlled to not more than approximately 1.0 mass % in a vacuum or non-oxidizing atmosphere. The austenitic stainless steel sheet can be formed to an objective shape without the occurrence of cracking due to its decrease in susceptibility to cracking and its good formability.