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:
Apr. 21, 2020
Filed:
Mar. 18, 2014
Kazumi Ohtake, Toyota, JP;
Takamichi Ueda, Toyota, JP;
Yoshikazu Genma, Toyota, JP;
Takahiro Sato, Chiryu, JP;
Hiroshi Fujii, Chiryu, JP;
Kazumi Ohtake, Toyota, JP;
Takamichi Ueda, Toyota, JP;
Yoshikazu Genma, Toyota, JP;
Takahiro Sato, Chiryu, JP;
Hiroshi Fujii, Chiryu, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
AISIN TAKAOKA CO., LTD., Toyota-shi, Aichi-ken, JP;
Abstract
An austenitic heat-resistant cast steel includes 0.1% to 0.6% by mass of C, 1.0% to 3.0% by mass of Si, 0.5% to 1.5% by mass of Mn, 0.05% by mass or less of P, 0.05% to 0.3% by mass of S, 9% to 16% by mass of Ni, 14% to 20% by mass of Cr, 0.1% to 0.2% by mass of N, and the balance of iron and inevitable impurities, in which a matrix structure of the austenitic heat-resistant cast steel is composed of austenite crystal grains, and a ferrite phase is dispersed and interposed between the austenite crystal grains so as to cover the austenite crystal grains.