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:
Jul. 01, 1980
Filed:
May. 31, 1978
Applicant:
Inventor:
Jean Bellot, Pompey, FR;
Assignee:
Societe Nouvelle des Acieries de Pompey, Neuilly-sur-Seine, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
75124 ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ;
Abstract
The fine-grained structural steel of the invention, having improved machinability and good mechanical properties, contains, in addition to iron and carbon, the following elements in the following by weight proportions: Mn 0.3 to 2%; S 0.02 to 0.10%; Te 14 to 130 ppm; Ca 2 to 18 ppm; Al 0.01 to 0.05%; the weight Te/S ratio ranging from 0.07 to 0.13, preferably 0.09 to 0.11.