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:
Sep. 06, 1983
Filed:
Dec. 10, 1982
Applicant:
Inventors:
Jack M Beigay, Buffalo Township, Allegheny County, PA (US);
Paul T Lovejoy, Penn Hills, PA (US);
Assignee:
Allegheny Ludlum Steel Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 / ; 148 124 ; 148127 ;
Abstract
After autogenous welding of coils of straight-chromium ferritic stainless steel, the weld area is heated to a temperature within the range of about 1325.degree. to 1515.degree. F. and water quenched from elevated temperatures to room temperature to improve the ductility of the weld area so that during subsequent cold rolling cracking of the weld area will be avoided.