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:
Dec. 25, 1979
Filed:
Jun. 28, 1977
Applicant:
Inventor:
Fritz Frehn, Krefeld, DE;
Assignee:
Thyssen Edelstahlwerke Aktiengesellschaft, Krefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ; C22C / ;
U.S. Cl.
CPC ...
75236 ; 75241 ;
Abstract
A sintered steel alloy, particularly for hot-working tools, of the type comprising a hard metal compound such as titanium carbide and a matrix alloy of nickel martensitic steel containing at least a small amount of titanium, is featured by a substantially higher than usual molybdenum content providing an improvement in toughness and hardness when appropriately heat treated.