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. 18, 1992
Filed:
Dec. 05, 1990
Applicant:
Inventors:
Koichi Sudo, Nagoya, JP;
Masaru Nagata, Nagoya, JP;
Assignee:
Dadio Tokushuko Kabushiki Kaisha, Nagoya, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ;
U.S. Cl.
CPC ...
420 84 ; 420111 ;
Abstract
Disclosed is a steel for plastics molds superior in weldability. The steel consists essentially of C: 0.1 to 0.3%, Mn: 0.5 to 3.5%, Cr: 1.0 to 3.0%, Mo:0.03 to 2.0%, V:0.1 to 1.0% and S: 0.01 to 0.10%; Si: not more than 0.25%, P: not more than 0.2%, and B: not more than 0.002%; the balance being substantially Fe. The alloy composition should satisfy the following formula: