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:
Jun. 05, 1979
Filed:
Aug. 18, 1978
Applicant:
Inventors:
Thoni V Philip, Reading, PA (US);
Robert W Krieble, Reading, PA (US);
Assignee:
Carpenter Technology Corporation, Reading, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ;
U.S. Cl.
CPC ...
75124 ; 75125 ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 148 315 ; 148 36 ;
Abstract
A carburizing alloy steel and case-hardened articles made therefrom, having high core impact strength and fracture toughness combined with high case hot hardness and temper resistance at 400.degree. F. (204.degree. C.), containing 0.06-0.16% carbon, 0.2-0.7% manganese, 0.5-1.5% silicon, 0.5-1.5% chromium, 1.5-3% nickel, 1-4% copper, 2.5-4% molybdenum, up to 0.4% vanadium, and the balance iron and incidental impurities. The alloy may also contain small amounts of phosphorus, sulfur, nitrogen, aluminum, columbium, titanium, zirconium, and calcium.