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. 30, 1988
Filed:
May. 02, 1985
Applicant:
Inventors:
Kazuaki Nishino, Aichi, JP;
Takuo Ito, Gifu, JP;
Satosi Kato, Aichi, JP;
Hidenori Yamaoka, Aichi, JP;
Assignee:
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420443 ; 420448 ; 420449 ; 420450 ; 420584 ;
Abstract
A heat-resistant alloy having excellent properties at high temperatures and useful for producing exhaust valves, comprises, in weight %, not more than 0.10% C, not more than 2.0% Si, not more than 2.0% Mn, from 35 to 50% Ni, from 17 to 25% Cr, from 3.2 to 5% Mo, from 2.0 to 3.2% Ti, from 0.5 to 1.5% Al, with the balance consisting essentially of Fe, wherein the weight ratio of Ti/Al is not more than 5/1. The alloy may further comprise at least one of B, Ca, and Mg, and/or at least one of Nb and Ta.