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:
May. 03, 1983
Filed:
Aug. 29, 1980
Applicant:
Inventors:
Juro Watanabe, Tokyo, JP;
Keizo Ohnishi, Muroran, JP;
Toru Ishiguro, Muroran, JP;
Takatoshi Ogawa, Noboribetsu, JP;
Assignee:
The Japan Steel Works, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
75124 ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ;
Abstract
The present invention provides low alloy steels having high strength and toughness, excellent high temperature creep rupture strength and ductility and low sensitivity to temper embrittlement. The alloy steel is a low carbon, low silicon-type Cr-Mo-V low alloy steel, to which are added aluminum, titanium, niobium and Zirconium individually or in combination and further, a small amount of boron.