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:
Aug. 22, 2006
Filed:
Oct. 28, 2003
Manabu Oku, Shin-Nanyo, JP;
Yoshitomo Fujimura, Shin-Nanyo, JP;
Yoshiaki Hori, Shin-Nanyo, JP;
Toshirou Nagoya, Shin-Nanyo, JP;
Yasutoshi Kunitake, Shin-Nanyo, JP;
Takeo Tomita, Shin-Nanyo, JP;
Manabu Oku, Shin-Nanyo, JP;
Yoshitomo Fujimura, Shin-Nanyo, JP;
Yoshiaki Hori, Shin-Nanyo, JP;
Toshirou Nagoya, Shin-Nanyo, JP;
Yasutoshi Kunitake, Shin-Nanyo, JP;
Takeo Tomita, Shin-Nanyo, JP;
Nisshin Steel Co., Ltd., Tokyo, JP;
Abstract
A method of manufacturing a ferritic stainless steel sheet having good workability with less anisotropy. The steps include providing a ferritic stainless steel comprising C up to about 0.03 mass %, N up to about 0.03 mass %, Si up to about 2.0 mass %, Mn up to about 2.0 mass %, Ni up to about 0.6 mass %, Cr about 9–35 mass %, Nb about 0.15–0.80 mass % and the balance being Fe except inevitable impurities; precipitation-heating said stainless steel at a temperature in a range of 700–850° C. for a time period not longer than 25 hours; and finish-annealing said stainless steel at a temperature in a range of 900–1100° C. for a time period not longer than 1 minute.