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. 26, 2000
Filed:
Jun. 05, 1998
Christian Bonnet, Saint Gervais, FR;
Bruno Leduey, Bessancourt, FR;
La Soudure Autogene Francaise, Paris Cedex, FR;
Abstract
A flux-cored wire for welding shielded by a flow of gas, in particular of the rutile or slag-free type, composed of an outer metal sheath and a central core comprising filling elements, and an MAG gas-shielded welding process using such a flux-cored wire for producing a welded joint on a steel construction, such as an offshore platform or a storage tank. The welded joint obtained has improved impact strength and improved toughness, and contains less than 65 ppm nitrogen, from 300 ppm to 0.12% carbon, from 0.01% to 0.6% silicon, from 0.9% to 1.9% manganese, from 20 ppm to 0.08% titanium, from 1 ppm to 80 ppm boron, from 5 ppm to 150 ppm aluminum, from 10 ppm to 0.02% niobium and from 10 ppm to 0.02% vanadium.